Compare 9/72 and 81/42
1st number: 9/72, 2nd number: 1 39/42
9/72 is smaller than 81/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
9/72 = 9 × 7/72 × 7 = 63/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
81/42 = 81 × 12/42 × 12 = 972/504 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 63/504 < 972/504 or 9/72 < 81/42
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