Compare 5/7 and 15/40
5/7 is greater than 15/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
5/7 = 5 × 40/7 × 40 = 200/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
15/40 = 15 × 7/40 × 7 = 105/280 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 200/280 > 105/280 or 5/7 > 15/40
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