Compare 15/28 and 9/40
15/28 is greater than 9/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
15/28 = 15 × 10/28 × 10 = 150/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
9/40 = 9 × 7/40 × 7 = 63/280 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 150/280 > 63/280 or 15/28 > 9/40
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