Compare 18/63 and 98/40, Which fraction is greater?

Compare 18/63 and 98/40

1^st number: 18/63, 2^nd number: 2 18/40

18/63 is smaller than 98/40

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

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 63 × 40 = 2520,
18/63 = 18 × 40/63 × 40 = 720/2520
Likewise, for the 2nd fraction, since 40 × 63 = 2520,
98/40 = 98 × 63/40 × 63 = 6174/2520
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
720/2520 < 6174/2520 or 18/63 < 98/40

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