Compare 21/81 and 12/50
21/81 is greater than 12/50
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 50 is 4050
Next, find the equivalent fraction of both fractional numbers with denominator 4050 - For the 1st fraction, since 81 × 50 = 4050,
21/81 = 21 × 50/81 × 50 = 1050/4050 - Likewise, for the 2nd fraction, since 50 × 81 = 4050,
12/50 = 12 × 81/50 × 81 = 972/4050 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1050/4050 > 972/4050 or 21/81 > 12/50
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