Compare 81/90 and 9/18
81/90 is greater than 9/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
81/90 = 81 × 1/90 × 1 = 81/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
9/18 = 9 × 5/18 × 5 = 45/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 81/90 > 45/90 or 81/90 > 9/18
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