Subtract 56/15 from 15/81
1st number: 15/81, 2nd number: 3 11/15
15/81 - 56/15 is -479/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 15 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 15 × 27 = 405,
56/15 = 56 × 27/15 × 27 = 1512/405 - Subtract the two like fractions:
75/405 - 1512/405 = 75 - 1512/405 = -1437/405 - After reducing the fraction, the answer is -479/135
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