Compare 18/15 and 80/12
1st number: 1 3/15, 2nd number: 6 8/12
18/15 is smaller than 80/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
18/15 = 18 × 4/15 × 4 = 72/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
80/12 = 80 × 5/12 × 5 = 400/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 72/60 < 400/60 or 18/15 < 80/12
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