Compare 18/54 and 7/20
18/54 is smaller than 7/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
18/54 = 18 × 10/54 × 10 = 180/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
7/20 = 7 × 27/20 × 27 = 189/540 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 180/540 < 189/540 or 18/54 < 7/20
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