Compare 21/28 and 30/48
21/28 is greater than 30/48
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 28 × 12 = 336,
21/28 = 21 × 12/28 × 12 = 252/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
30/48 = 30 × 7/48 × 7 = 210/336 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 252/336 > 210/336 or 21/28 > 30/48
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