Subtract 90/27 from 4/81
1st number: 4/81, 2nd number: 3 9/27
4/81 - 90/27 is -266/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 27 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 81 × 1 = 81,
4/81 = 4 × 1/81 × 1 = 4/81 - Likewise, for the 2nd fraction, since 27 × 3 = 81,
90/27 = 90 × 3/27 × 3 = 270/81 - Subtract the two like fractions:
4/81 - 270/81 = 4 - 270/81 = -266/81
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