Compare 9/42 and 90/81
1st number: 9/42, 2nd number: 1 9/81
9/42 is smaller than 90/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
9/42 = 9 × 27/42 × 27 = 243/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
90/81 = 90 × 14/81 × 14 = 1260/1134 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 243/1134 < 1260/1134 or 9/42 < 90/81
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