Compare 21/40 and 7/54
21/40 is greater than 7/54
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
21/40 = 21 × 27/40 × 27 = 567/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
7/54 = 7 × 20/54 × 20 = 140/1080 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 567/1080 > 140/1080 or 21/40 > 7/54
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