Compare 21/54 and 15/16
21/54 is smaller than 15/16
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 16 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 54 × 8 = 432,
21/54 = 21 × 8/54 × 8 = 168/432 - Likewise, for the 2nd fraction, since 16 × 27 = 432,
15/16 = 15 × 27/16 × 27 = 405/432 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 168/432 < 405/432 or 21/54 < 15/16
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