Compare 8/21 and 63/84
8/21 is smaller than 63/84
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
8/21 = 8 × 4/21 × 4 = 32/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
63/84 = 63 × 1/84 × 1 = 63/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 32/84 < 63/84 or 8/21 < 63/84
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