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anonymous
 one year ago
I Will Medal And Fan! I need explanation AND answer!
First, rewrite 9/20 and 7/15 so that they have a common denominator. Then, use <, =, or > to order
9/20 and 7/15
9/20 = ? ; 7/15 = ?
9/20 <,>, or = 7/15
anonymous
 one year ago
I Will Medal And Fan! I need explanation AND answer! First, rewrite 9/20 and 7/15 so that they have a common denominator. Then, use <, =, or > to order 9/20 and 7/15 9/20 = ? ; 7/15 = ? 9/20 <,>, or = 7/15

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ 9 }{ 20 } = ? ; \frac{ 7 }{ 15 } = ?\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ 9 }{ 20 } <,>, or =, \frac{ 7 }{ 15 }\]

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Can you think of a number that you can divide by both 15 and 20 without remainder?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1No. You misunderstood me. You found a number that you can divide 15 by and 20 by with no remainder. 15/5 = 3, and 20/5 = 4. No remainder. That's not what we need. We need a number greater than 15 and 20. Call that number x. The number must be such that x/15 and x/20 have no remainder. Here's a way of finding such a number. Multiply 15 by 1, 2, 3, 4, 5, and write down the numbers. Then multiply 20 by 1, 2, 3, 4, 5, and write down the numbers. The smallest number in both lists is the number we need.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Excellent. 60 is the least common multiple of 15 and 20. That means 60 is the smallest number that you can divide by both 15 and 20 with no remainder.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1We are comparing these two fractions with denominators 15 and 20. dw:1440013066669:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now that we know that 60 is the least common denominator, we need to change both fractions to a denominator of 60.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1To change a fraction to an equivalent fraction, we must multiply the numerator and denominator by the same number.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440013188915:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440013291109:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now we do the same to 7/15.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440013338011:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440013457711:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now that we have equivalent fractions with the same denominator, 60, we can compare them with <, =, or >.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440013525798:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Wow, you answer my question before I even ask.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440013619290:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Since we use < in the equivalent fractions below, we use < also in the original fractions.
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