Compare 9/54 and 4/21
9/54 is smaller than 4/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 21 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
9/54 = 9 × 7/54 × 7 = 63/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
4/21 = 4 × 18/21 × 18 = 72/378 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 63/378 < 72/378 or 9/54 < 4/21
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