Compare 5/81 and 5/40
5/81 is smaller than 5/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
5/81 = 5 × 40/81 × 40 = 200/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
5/40 = 5 × 81/40 × 81 = 405/3240 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 200/3240 < 405/3240 or 5/81 < 5/40
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