Compare 6/18 and 21/54
6/18 is smaller than 21/54
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
6/18 = 6 × 3/18 × 3 = 18/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
21/54 = 21 × 1/54 × 1 = 21/54 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 18/54 < 21/54 or 6/18 < 21/54
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