Compare 12/81 and 5/8
12/81 is smaller than 5/8
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
12/81 = 12 × 8/81 × 8 = 96/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
5/8 = 5 × 81/8 × 81 = 405/648 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 96/648 < 405/648 or 12/81 < 5/8
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