Compare 3/18 and 5/20
3/18 is smaller than 5/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
3/18 = 3 × 10/18 × 10 = 30/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
5/20 = 5 × 9/20 × 9 = 45/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/180 < 45/180 or 3/18 < 5/20
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