Compare 4/5 and 81/20
1st number: 4/5, 2nd number: 4 1/20
4/5 is smaller than 81/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
4/5 = 4 × 4/5 × 4 = 16/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
81/20 = 81 × 1/20 × 1 = 81/20 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 16/20 < 81/20 or 4/5 < 81/20
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