Compare 6/16 and 21/81
6/16 is greater than 21/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 16 × 81 = 1296,
6/16 = 6 × 81/16 × 81 = 486/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
21/81 = 21 × 16/81 × 16 = 336/1296 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 486/1296 > 336/1296 or 6/16 > 21/81
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