Compare 70/96 and 80/21, Which fraction is greater?

Compare 70/96 and 80/21

1^st number: 70/96, 2^nd number: 3 17/21

70/96 is smaller than 80/21

Find the least common denominator or LCM of the two denominators:
LCM of 96 and 21 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 96 × 7 = 672,
70/96 = 70 × 7/96 × 7 = 490/672
Likewise, for the 2nd fraction, since 21 × 32 = 672,
80/21 = 80 × 32/21 × 32 = 2560/672
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
490/672 < 2560/672 or 70/96 < 80/21

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