Compare 12/80 and 15/40
12/80 is smaller than 15/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
12/80 = 12 × 1/80 × 1 = 12/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
15/40 = 15 × 2/40 × 2 = 30/80 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 12/80 < 30/80 or 12/80 < 15/40
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