Compare 40/81 and 12/70
40/81 is greater than 12/70
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
40/81 = 40 × 70/81 × 70 = 2800/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
12/70 = 12 × 81/70 × 81 = 972/5670 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 2800/5670 > 972/5670 or 40/81 > 12/70
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