Compare 8/28 and 20/81
8/28 is greater than 20/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 81 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 28 × 81 = 2268,
8/28 = 8 × 81/28 × 81 = 648/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
20/81 = 20 × 28/81 × 28 = 560/2268 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 648/2268 > 560/2268 or 8/28 > 20/81
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