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You don't know!!!!

Compare 5/7 & 7/8 ; which greater?

To compare , we bring to a common denominator of 56 ( 7 x 8 ) in this case.

We then make the numerators the equivalent fraction.

Hence

5/7 = 5(8)/7(8) & 7/8 = 7(7)/8(7)

5/7 = 40/56 & 7/8 = 49/56

We now compare numerators, because the denominators are the same value at '56'.

(top number)

40 < 49

Hence

40/56 < 49/56 It follows that 5/7 < 7/8

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lenpollock

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6mo ago
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12y ago

If you know how to multiply, cross multiply.

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Q: How do you know if a fraction is less than another fraction?
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