Compare 25/20 and 36/21
1st number: 1 5/20, 2nd number: 1 15/21
25/20 is smaller than 36/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
25/20 = 25 × 21/20 × 21 = 525/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
36/21 = 36 × 20/21 × 20 = 720/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 525/420 < 720/420 or 25/20 < 36/21
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