Subtract 90/81 from 4/27
1st number: 4/27, 2nd number: 1 9/81
4/27 - 90/81 is -26/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 27 × 3 = 81,
4/27 = 4 × 3/27 × 3 = 12/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
90/81 = 90 × 1/81 × 1 = 90/81 - Subtract the two like fractions:
12/81 - 90/81 = 12 - 90/81 = -78/81 - After reducing the fraction, the answer is -26/27
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