Compare 81/42 and 28/80
1st number: 1 39/42, 2nd number: 28/80
81/42 is greater than 28/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 42 × 40 = 1680,
81/42 = 81 × 40/42 × 40 = 3240/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
28/80 = 28 × 21/80 × 21 = 588/1680 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 3240/1680 > 588/1680 or 81/42 > 28/80
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