Compare 81/20 and 75/10
1st number: 4 1/20, 2nd number: 7 5/10
81/20 is smaller than 75/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
81/20 = 81 × 1/20 × 1 = 81/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
75/10 = 75 × 2/10 × 2 = 150/20 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 81/20 < 150/20 or 81/20 < 75/10
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