Compare 15/54 and 21/49
15/54 is smaller than 21/49
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 49 is 2646
Next, find the equivalent fraction of both fractional numbers with denominator 2646 - For the 1st fraction, since 54 × 49 = 2646,
15/54 = 15 × 49/54 × 49 = 735/2646 - Likewise, for the 2nd fraction, since 49 × 54 = 2646,
21/49 = 21 × 54/49 × 54 = 1134/2646 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 735/2646 < 1134/2646 or 15/54 < 21/49
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