Compare 18/5 and 81/84
1st number: 3 3/5, 2nd number: 81/84
18/5 is greater than 81/84
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
18/5 = 18 × 84/5 × 84 = 1512/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
81/84 = 81 × 5/84 × 5 = 405/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1512/420 > 405/420 or 18/5 > 81/84
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