Compare 18/15 and 42/25
1st number: 1 3/15, 2nd number: 1 17/25
18/15 is smaller than 42/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 25 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
18/15 = 18 × 5/15 × 5 = 90/75 - Likewise, for the 2nd fraction, since 25 × 3 = 75,
42/25 = 42 × 3/25 × 3 = 126/75 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 90/75 < 126/75 or 18/15 < 42/25
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