Compare 81/30 and 70/28
1st number: 2 21/30, 2nd number: 2 14/28
81/30 is greater than 70/28
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
81/30 = 81 × 14/30 × 14 = 1134/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
70/28 = 70 × 15/28 × 15 = 1050/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1134/420 > 1050/420 or 81/30 > 70/28
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