Subtract 70/27 from 10/81
1st number: 10/81, 2nd number: 2 16/27
10/81 - 70/27 is -200/81.
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,
10/81 = 10 × 1/81 × 1 = 10/81 - Likewise, for the 2nd fraction, since 27 × 3 = 81,
70/27 = 70 × 3/27 × 3 = 210/81 - Subtract the two like fractions:
10/81 - 210/81 = 10 - 210/81 = -200/81
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