{"id":1090,"date":"2021-02-19T06:22:47","date_gmt":"2021-02-19T06:22:47","guid":{"rendered":"https:\/\/www.learnzoe.com\/blog\/?p=1090"},"modified":"2023-06-09T06:28:25","modified_gmt":"2023-06-09T06:28:25","slug":"multiplying-and-dividing-fractions","status":"publish","type":"post","link":"https:\/\/www.learnzoe.com\/blog\/multiplying-and-dividing-fractions\/","title":{"rendered":"Multiplying and Dividing Fractions"},"content":{"rendered":"\n<p>Multiplying and dividing fractions is easier than <a href=\"https:\/\/www.learnzoe.com\/blog\/adding-and-subtracting-fractions\/\">adding and subtracting fractions<\/a>. It does not require a lot of steps because it only involves multiplying and simplifying.\u00a0<br><\/p>\n\n\n\n<p>When multiplying fractions, you take the numerators and multiply them. You also do the same with the denominators. If needed, the final product is simplified by dividing the numerator and the denominator by their <a href=\"https:\/\/www.calculatorsoup.com\/calculators\/math\/gcf.php#:~:text=The%20greatest%20common%20factor%20(GCF,and%2042%20the%20GCF%20%3D%206.\">Greatest Common Factor<\/a>. <a href=\"https:\/\/www.learnzoe.com\/blog\/multiplying-and-dividing-fractions-2\/\">Dividing fractions is almost the same as multiplying<\/a> fractions except that you get the reciprocal of the divisor before proceeding to multiplication and then simplifying the quotient if needed. <a href=\"https:\/\/www.learnzoe.com\/blog\/simplifying-fractions\/\">Simplifying fractions<\/a> will make computation easy.<br><\/p>\n\n\n\n<p>But what happens when you multiply or divide fractions?<\/p>\n\n\n\n<h2 class=\"blue wp-block-heading\">Multiplying Fractions: How Do You Multiply Fractions?<br><\/h2>\n\n\n\n<p>In <a href=\"https:\/\/www.learnzoe.com\/blog\/are-all-whole-numbers-rational\/\">whole numbers<\/a>, multiplication can be thought of as repeated addition. For example, <span class=\"wp-katex-eq\" data-display=\"false\"> 4\\times 3<\/span> means adding 3 to itself 4 times:<\/p>\n\n\n\n<p style=\"text-align:center\"><span class=\"wp-katex-eq\" data-display=\"false\"> 4\\times 3= 3+3+3+3=12 <\/span><\/p>\n\n\n\n<p>Another example is when we <a href=\"https:\/\/www.learnzoe.com\/blog\/multiplying-a-fraction-by-whole-number\/\">multiply a whole number by a fraction<\/a>.<\/p>\n\n\n\n<p style=\"text-align:center\"><span class=\"wp-katex-eq\" data-display=\"false\">3\\times \\frac{1}{2}= \\frac{1}{2}+\\frac{1}{2}+\\frac{1}{2}=12=\\frac{3}{2}<\/span> or <span class=\"wp-katex-eq\" data-display=\"false\"> 1\\frac{1}{2} <\/span><\/p>\n\n\n\n<p>This concept is not always easier, especially when multiplying fractions. The thing to remember about multiplying fractions is that you are repeatedly increasing the part of a whole. This means unlike multiplying <a href=\"https:\/\/www.learnzoe.com\/blog\/whole-numbers-for-primary-3\/\">whole numbers<\/a>, multiplying fractions results in a product that is even smaller than the factors.<br><\/p>\n\n\n\n<p>Example:<\/p>\n\n\n\n<p><span class=\"wp-katex-eq\" data-display=\"false\">\\frac{1}{2}\\times\\frac{1}{3} <\/span> means you are multiplying <span class=\"wp-katex-eq\" data-display=\"false\"> \\frac{1}{2} <\/span> by less than a whole, in this case,  <span class=\"wp-katex-eq\" data-display=\"false\"> \\frac{1}{3}<\/span>  <\/p>\n\n\n\n<p>So that if you have  <span class=\"wp-katex-eq\" data-display=\"false\"> \\frac{1}{2} <\/span>  of a rectangle, multiplying it by <span class=\"wp-katex-eq\" data-display=\"false\">  \\frac{1}{3} <\/span> means taking a third of that half. <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/docs.google.com\/drawings\/u\/0\/d\/spKIdFgOf1xbpH-uR6Q3efA\/image?w=272&amp;h=156&amp;rev=20&amp;ac=1&amp;parent=1i6Ch002bfH5-pBRoBPur5yNOunjyp0d3h13Vlwer8P4\" alt=\"A square divided into 6 parts\"\/><\/figure><\/div>\n\n\n\n<p>The result is <span class=\"wp-katex-eq\" data-display=\"false\">  \\frac{1}{6}  <\/span> of the whole rectangle.<\/p>\n\n\n\n<p>Another way to look at it is by dividing <span class=\"wp-katex-eq\" data-display=\"false\">  \\frac{1}{2}  <\/span> of the rectangle into 3 equal parts and describing the result about the whole rectangle.<\/p>\n\n\n\n<p>Remember that if you multiply proper fractions, your product will be smaller than the two factors.<\/p>\n\n\n\n<h2 class=\"blue wp-block-heading\">Dividing Fractions: How Do You Divide Fractions?<\/h2>\n\n\n\n<p>In whole numbers, for example, <span class=\"wp-katex-eq\" data-display=\"false\"> 15\\div3 <\/span> means how many 3 go into 15. The answer is 5 because there are 5 sets of 3 in 15. The same goes for dividing fractions. You want to know how many parts can go into a given fraction.<br><\/p>\n\n\n\n<p>Let\u2019s use the same fractions in the multiplication example so you can differentiate the two operations.<\/p>\n\n\n\n<p><span class=\"wp-katex-eq\" data-display=\"false\">\\frac{1}{2}\\div\\frac{1}{3}=<\/span> This means how many<strong> <\/strong><span class=\"wp-katex-eq\" data-display=\"false\">  \\frac{1}{3} <\/span> of a whole can you get from  <span class=\"wp-katex-eq\" data-display=\"false\">  \\frac{1}{2}  <\/span>.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/docs.google.com\/drawings\/u\/0\/d\/s0HVxgLrBT_-FNcQ3ceb9yA\/image?w=287&amp;h=162&amp;rev=26&amp;ac=1&amp;parent=1i6Ch002bfH5-pBRoBPur5yNOunjyp0d3h13Vlwer8P4\" alt=\"A square divided into 2 parts\"\/><\/figure><\/div>\n\n\n\n<p>The rectangle is divided in half with a red line. The broken blue lines divide the same rectangle into three to represent thirds. So by taking half of the rectangle, you get <span class=\"wp-katex-eq\" data-display=\"false\"> \\frac{1}{3}<\/span> and half of the second<span class=\"wp-katex-eq\" data-display=\"false\"> \\frac{1}{3}<\/span> <\/p>\n\n\n\n<p><span class=\"wp-katex-eq\" data-display=\"false\">\\frac{1}{2}\\div\\frac{1}{3}=\\frac{3}{2}<\/span> or <span class=\"wp-katex-eq\" data-display=\"false\">1\\frac{1}{2}  <\/span>(of the third)<\/p>\n\n\n\n<p>To solve <span class=\"wp-katex-eq\" data-display=\"false\">\\frac{1}{2}\\div\\frac{1}{3}<\/span> without drawing the fractions<br><\/p>\n\n\n\n<p>Step 1: Get the reciprocal of the divisor<\/p>\n\n\n\n<p style=\"text-align:center\"><span class=\"wp-katex-eq\" data-display=\"false\"> \\frac{1}{3}<\/span> is the divisor and its reciprocal is <span class=\"wp-katex-eq\" data-display=\"false\"> \\frac{3}{1}<\/span>.<\/p>\n\n\n\n<p>Step 2: Change the operation from division to multiplication<\/p>\n\n\n\n<p style=\"text-align:center\"><span class=\"wp-katex-eq\" data-display=\"false\">\\frac{1}{2}\\times\\frac{3}{1}<\/span> <\/p>\n\n\n\n<p>Step 3: Multiply the fractions.<\/p>\n\n\n\n<p style=\"text-align:center\"><span class=\"wp-katex-eq\" data-display=\"false\">\\frac{1}{2}\\times \\frac{3}{1}=\\frac{3}{2}<\/span> or <span class=\"wp-katex-eq\" data-display=\"false\">1\\frac{1}{2}<\/span><\/p>\n\n\n\n<p>Do not forget to simplify your product by their GCF if needed. <\/p>\n\n\n\n<p><a href=\"https:\/\/www.learnzoe.com\/blog\/multiplying-and-dividing-fractions\/\">Multiplying and Dividing Fractions<\/a> are easy, especially once you\u2019ve mastered the basic facts. Unlike <a href=\"https:\/\/www.learnzoe.com\/blog\/adding-and-subtracting-fractions\/\">Addition and Subtraction of Fractions<\/a>, representing these <a href=\"https:\/\/www.learnzoe.com\/blog\/what-is-an-equation\/\">equations<\/a> may not be the simplest and the fastest, but sometimes, doing so gives you a better understanding of what happens to fractions when they are multiplied or divided.<br><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Multiplying and dividing fractions is easier than adding and subtracting fractions. It does not require a lot of steps because it only involves multiplying and simplifying.\u00a0 When multiplying fractions, you take the numerators and multiply them. You also do the same with the denominators. If needed, the final product is simplified by dividing the numerator [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1117,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[150,151,112,108,105,106,107,147,103,149],"tags":[159,158],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Multiplying and Dividing Fractions | Learn ZOE<\/title>\n<meta name=\"description\" content=\"Multiplying and dividing fractions are much easier than adding and subtracting. 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