Compare 24/21 and 70/40, Which fraction is greater?

Compare 24/21 and 70/40

1^st number: 1 3/21, 2^nd number: 1 30/40

24/21 is smaller than 70/40

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 40 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 21 × 40 = 840,
24/21 = 24 × 40/21 × 40 = 960/840
Likewise, for the 2nd fraction, since 40 × 21 = 840,
70/40 = 70 × 21/40 × 21 = 1470/840
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
960/840 < 1470/840 or 24/21 < 70/40

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