Compare 70/40 and 15/63, Which fraction is greater?

Compare 70/40 and 15/63

1^st number: 1 30/40, 2^nd number: 15/63

70/40 is greater than 15/63

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 40 × 63 = 2520,
70/40 = 70 × 63/40 × 63 = 4410/2520
Likewise, for the 2nd fraction, since 63 × 40 = 2520,
15/63 = 15 × 40/63 × 40 = 600/2520
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
4410/2520 > 600/2520 or 70/40 > 15/63

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