Compare 20/36 and 21/25
20/36 is smaller than 21/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 25 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 36 × 25 = 900,
20/36 = 20 × 25/36 × 25 = 500/900 - Likewise, for the 2nd fraction, since 25 × 36 = 900,
21/25 = 21 × 36/25 × 36 = 756/900 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 500/900 < 756/900 or 20/36 < 21/25
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