Compare 21/48 and 5/18
21/48 is greater than 5/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 18 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
21/48 = 21 × 3/48 × 3 = 63/144 - Likewise, for the 2nd fraction, since 18 × 8 = 144,
5/18 = 5 × 8/18 × 8 = 40/144 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 63/144 > 40/144 or 21/48 > 5/18
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