Compare 3/21 and 32/20
1st number: 3/21, 2nd number: 1 12/20
3/21 is smaller than 32/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
3/21 = 3 × 20/21 × 20 = 60/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
32/20 = 32 × 21/20 × 21 = 672/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 60/420 < 672/420 or 3/21 < 32/20
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