Compare 21/28 and 12/32
21/28 is greater than 12/32
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 28 × 8 = 224,
21/28 = 21 × 8/28 × 8 = 168/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
12/32 = 12 × 7/32 × 7 = 84/224 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 168/224 > 84/224 or 21/28 > 12/32
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