Compare 21/48 and 18/28
21/48 is smaller than 18/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 28 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Likewise, for the 2nd fraction, since 28 × 12 = 336,
18/28 = 18 × 12/28 × 12 = 216/336 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/336 < 216/336 or 21/48 < 18/28
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