Subtract 18/81 from 1/9
1/9 - 18/81 is -1/9.
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,
1/9 = 1 × 9/9 × 9 = 9/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
18/81 = 18 × 1/81 × 1 = 18/81 - Subtract the two like fractions:
9/81 - 18/81 = 9 - 18/81 = -9/81 - After reducing the fraction, the answer is -1/9
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