Compare 12/25 and 15/18
12/25 is smaller than 15/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
12/25 = 12 × 18/25 × 18 = 216/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
15/18 = 15 × 25/18 × 25 = 375/450 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 216/450 < 375/450 or 12/25 < 15/18
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