Subtract 7/6 from 40/81
1st number: 40/81, 2nd number: 1 1/6
40/81 - 7/6 is -109/162.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 6 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 81 × 2 = 162,
40/81 = 40 × 2/81 × 2 = 80/162 - Likewise, for the 2nd fraction, since 6 × 27 = 162,
7/6 = 7 × 27/6 × 27 = 189/162 - Subtract the two like fractions:
80/162 - 189/162 = 80 - 189/162 = -109/162
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