Compare 9/21 and 5/42
921 is greater than 542
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
921 = 9 × 221 × 2 = 1842 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
542 = 5 × 142 × 1 = 542 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1842 > 542 or 921 > 542
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