Compare 20/25 and 81/20
1st number: 20/25, 2nd number: 4 1/20
20/25 is smaller than 81/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
20/25 = 20 × 4/25 × 4 = 80/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
81/20 = 81 × 5/20 × 5 = 405/100 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 80/100 < 405/100 or 20/25 < 81/20
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