Compare 21/36 and 15/48
21/36 is greater than 15/48
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 36 × 4 = 144,
21/36 = 21 × 4/36 × 4 = 84/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
15/48 = 15 × 3/48 × 3 = 45/144 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 84/144 > 45/144 or 21/36 > 15/48
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