Subtract 4/81 from 25/27
25/27 - 4/81 is 71/81.
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,
25/27 = 25 × 3/27 × 3 = 75/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
4/81 = 4 × 1/81 × 1 = 4/81 - Subtract the two like fractions:
75/81 - 4/81 = 75 - 4/81 = 71/81
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