Compare 18/28 and 12/40
18/28 is greater than 12/40
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,
18/28 = 18 × 10/28 × 10 = 180/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
12/40 = 12 × 7/40 × 7 = 84/280 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 180/280 > 84/280 or 18/28 > 12/40
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