Compare 3/84 and 21/64
3/84 is smaller than 21/64
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 64 is 1344
Next, find the equivalent fraction of both fractional numbers with denominator 1344 - For the 1st fraction, since 84 × 16 = 1344,
3/84 = 3 × 16/84 × 16 = 48/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
21/64 = 21 × 21/64 × 21 = 441/1344 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 48/1344 < 441/1344 or 3/84 < 21/64
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