Compare 21/50 and 4/81
21/50 is greater than 4/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 81 is 4050
Next, find the equivalent fraction of both fractional numbers with denominator 4050 - For the 1st fraction, since 50 × 81 = 4050,
21/50 = 21 × 81/50 × 81 = 1701/4050 - Likewise, for the 2nd fraction, since 81 × 50 = 4050,
4/81 = 4 × 50/81 × 50 = 200/4050 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1701/4050 > 200/4050 or 21/50 > 4/81
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