Compare 15/20 and 49/42
1st number: 15/20, 2nd number: 1 7/42
15/20 is smaller than 49/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
15/20 = 15 × 21/20 × 21 = 315/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
49/42 = 49 × 10/42 × 10 = 490/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 315/420 < 490/420 or 15/20 < 49/42
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