Compare 21/54 and 42/20
1st number: 21/54, 2nd number: 2 2/20
21/54 is smaller than 42/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
21/54 = 21 × 10/54 × 10 = 210/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
42/20 = 42 × 27/20 × 27 = 1134/540 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/540 < 1134/540 or 21/54 < 42/20
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