Compare 45/30 and 81/28
1st number: 1 15/30, 2nd number: 2 25/28
45/30 is smaller than 81/28
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,
45/30 = 45 × 14/30 × 14 = 630/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
81/28 = 81 × 15/28 × 15 = 1215/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 630/420 < 1215/420 or 45/30 < 81/28
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