Compare 21/49 and 28/20
1st number: 21/49, 2nd number: 1 8/20
21/49 is smaller than 28/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
21/49 = 21 × 20/49 × 20 = 420/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
28/20 = 28 × 49/20 × 49 = 1372/980 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 420/980 < 1372/980 or 21/49 < 28/20
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