Compare 15/50 and 30/81
15/50 is smaller than 30/81
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,
15/50 = 15 × 81/50 × 81 = 1215/4050 - Likewise, for the 2nd fraction, since 81 × 50 = 4050,
30/81 = 30 × 50/81 × 50 = 1500/4050 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1215/4050 < 1500/4050 or 15/50 < 30/81
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