Compare 15/21 and 80/56
1st number: 15/21, 2nd number: 1 24/56
15/21 is smaller than 80/56
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
15/21 = 15 × 8/21 × 8 = 120/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
80/56 = 80 × 3/56 × 3 = 240/168 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 120/168 < 240/168 or 15/21 < 80/56
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