Compare 18/40 and 5/15
18/40 is greater than 5/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
18/40 = 18 × 3/40 × 3 = 54/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
5/15 = 5 × 8/15 × 8 = 40/120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 54/120 > 40/120 or 18/40 > 5/15
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