Compare 81/2 and 21/28
1st number: 40 1/2, 2nd number: 21/28
81/2 is greater than 21/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 2 × 14 = 28,
81/2 = 81 × 14/2 × 14 = 1134/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
21/28 = 21 × 1/28 × 1 = 21/28 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1134/28 > 21/28 or 81/2 > 21/28
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