Compare 49/81 and 20/28
49/81 is smaller than 20/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 28 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 81 × 28 = 2268,
49/81 = 49 × 28/81 × 28 = 1372/2268 - Likewise, for the 2nd fraction, since 28 × 81 = 2268,
20/28 = 20 × 81/28 × 81 = 1620/2268 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1372/2268 < 1620/2268 or 49/81 < 20/28
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