document.write( "Question 1085450: Why is 4 over 5 greater than 2 over 3? \n" ); document.write( "
Algebra.Com's Answer #699530 by Theo(13342)\"\" \"About 
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to compare fractions, put them both under the same denominator.\r
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\n" ); document.write( "\n" ); document.write( "your fractions are 4/5 and 2/3\r
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\n" ); document.write( "\n" ); document.write( "5 and 3 have a common multiple of 15, so make both fractions have a denominator of 15.\r
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\n" ); document.write( "\n" ); document.write( "you do this by:\r
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\n" ); document.write( "\n" ); document.write( "multiplying 4/5 by 3/3 to get 12/15\r
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\n" ); document.write( "\n" ); document.write( "multiplying 2/3 by 5/5 to get 10/15\r
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\n" ); document.write( "\n" ); document.write( "12/15 is greater than 10/15.\r
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\n" ); document.write( "\n" ); document.write( "why can you multiply by 3/3 or 5/5 and not change the fraction?\r
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\n" ); document.write( "\n" ); document.write( "because 3/3 is equal to 1 and 5/5 is equal to 1 and multiplying any number by 1 gives you the same number.\r
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\n" ); document.write( "\n" ); document.write( "another way to do it physically is to cut strips of paper the same length and then divide one strip into 3 equal parts and the divide the other strip into 5 equal parts.\r
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\n" ); document.write( "\n" ); document.write( "then put 2 of the 3 strips together and compare them to 4 of the 5 strips together.\r
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\n" ); document.write( "\n" ); document.write( "you will see that the 4/5 strip is larger than the 2/3 strip.\r
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\n" ); document.write( "\n" ); document.write( "most of the time when you compare fractions, you put them under the same denominator.\r
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\n" ); document.write( "\n" ); document.write( "you do this to add them together and to subtract them from each other as well.\r
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\n" ); document.write( "\n" ); document.write( "not sure what grade you're in, but there are other methods, such as setting up an inequality and then solving that inequality to see if it's true.\r
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\n" ); document.write( "\n" ); document.write( "for example:\r
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\n" ); document.write( "\n" ); document.write( "4/5 > 2/3 means 4/5 is greater than 2/3.\r
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\n" ); document.write( "\n" ); document.write( "multiply both sides of this inequality by 15 and you get 12 > 10 which is true, therefore confirming that 4/5 truly is greater than 2/3.\r
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\n" ); document.write( "\n" ); document.write( "if you haven't learned that yet, don't worry about it; you will eventually.\r
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