Compare 54/21 and 42/12
1st number: 2 12/21, 2nd number: 3 6/12
54/21 is smaller than 42/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
54/21 = 54 × 4/21 × 4 = 216/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
42/12 = 42 × 7/12 × 7 = 294/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 216/84 < 294/84 or 54/21 < 42/12
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