Compare 21/42 and 7/24
21/42 is greater than 7/24
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
21/42 = 21 × 4/42 × 4 = 84/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
7/24 = 7 × 7/24 × 7 = 49/168 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 84/168 > 49/168 or 21/42 > 7/24
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