Subtract 6/5 from 15/81
1st number: 15/81, 2nd number: 1 1/5
15/81 - 6/5 is -137/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 5 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
15/81 = 15 × 5/81 × 5 = 75/405 - Likewise, for the 2nd fraction, since 5 × 81 = 405,
6/5 = 6 × 81/5 × 81 = 486/405 - Subtract the two like fractions:
75/405 - 486/405 = 75 - 486/405 = -411/405 - After reducing the fraction, the answer is -137/135
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