Compare 81/18 and 8/5
1st number: 4 9/18, 2nd number: 1 3/5
81/18 is greater than 8/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
81/18 = 81 × 5/18 × 5 = 405/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
8/5 = 8 × 18/5 × 18 = 144/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 405/90 > 144/90 or 81/18 > 8/5
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