Compare 21/2 and 21/20
1st number: 10 1/2, 2nd number: 1 1/20
21/2 is greater than 21/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
21/2 = 21 × 10/2 × 10 = 210/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
21/20 = 21 × 1/20 × 1 = 21/20 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/20 > 21/20 or 21/2 > 21/20
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