Compare 9/81 and 20/50
9/81 is smaller than 20/50
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,
9/81 = 9 × 50/81 × 50 = 450/4050 - Likewise, for the 2nd fraction, since 50 × 81 = 4050,
20/50 = 20 × 81/50 × 81 = 1620/4050 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 450/4050 < 1620/4050 or 9/81 < 20/50
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