Compare 42/54 and 21/7
1st number: 42/54, 2nd number: 3 0/7
42/54 is smaller than 21/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 7 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
42/54 = 42 × 7/54 × 7 = 294/378 - Likewise, for the 2nd fraction, since 7 × 54 = 378,
21/7 = 21 × 54/7 × 54 = 1134/378 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 294/378 < 1134/378 or 42/54 < 21/7
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