Compare 81/2 and 4/21
1st number: 40 1/2, 2nd number: 4/21
81/2 is greater than 4/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
81/2 = 81 × 21/2 × 21 = 1701/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
4/21 = 4 × 2/21 × 2 = 8/42 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1701/42 > 8/42 or 81/2 > 4/21
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