Compare 12/30 and 90/28
1st number: 12/30, 2nd number: 3 6/28
12/30 is smaller than 90/28
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,
12/30 = 12 × 14/30 × 14 = 168/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
90/28 = 90 × 15/28 × 15 = 1350/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 168/420 < 1350/420 or 12/30 < 90/28
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