Subtract 75/81 from 8/9
8/9 - 75/81 is -1/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
8/9 = 8 × 9/9 × 9 = 72/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
75/81 = 75 × 1/81 × 1 = 75/81 - Subtract the two like fractions:
72/81 - 75/81 = 72 - 75/81 = -3/81 - After reducing the fraction, the answer is -1/27
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