Compare 18/49 and 12/20
18/49 is smaller than 12/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
18/49 = 18 × 20/49 × 20 = 360/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
12/20 = 12 × 49/20 × 49 = 588/980 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 360/980 < 588/980 or 18/49 < 12/20
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