Compare 30/42 and 9/81
30/42 is greater than 9/81
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,
30/42 = 30 × 27/42 × 27 = 810/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
9/81 = 9 × 14/81 × 14 = 126/1134 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 810/1134 > 126/1134 or 30/42 > 9/81
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