Compare 15/30 and 20/25
15/30 is smaller than 20/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 25 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
15/30 = 15 × 5/30 × 5 = 75/150 - Likewise, for the 2nd fraction, since 25 × 6 = 150,
20/25 = 20 × 6/25 × 6 = 120/150 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 75/150 < 120/150 or 15/30 < 20/25
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