Subtract 81/18 from 40/14
1st number: 2 12/14, 2nd number: 4 9/18
40/14 - 81/18 is -23/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
40/14 = 40 × 9/14 × 9 = 360/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
81/18 = 81 × 7/18 × 7 = 567/126 - Subtract the two like fractions:
360/126 - 567/126 = 360 - 567/126 = -207/126 - After reducing the fraction, the answer is -23/14
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