Compare 18/20 and 32/90
18/20 is greater than 32/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
18/20 = 18 × 9/20 × 9 = 162/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
32/90 = 32 × 2/90 × 2 = 64/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 162/180 > 64/180 or 18/20 > 32/90
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