Compare 9/20 and 15/30
9/20 is smaller than 15/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
9/20 = 9 × 3/20 × 3 = 27/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
15/30 = 15 × 2/30 × 2 = 30/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 27/60 < 30/60 or 9/20 < 15/30
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