Subtract 81/9 from 40/14
1st number: 2 12/14, 2nd number: 9 0/9
40/14 - 81/9 is -43/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 9 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 9 × 14 = 126,
81/9 = 81 × 14/9 × 14 = 1134/126 - Subtract the two like fractions:
360/126 - 1134/126 = 360 - 1134/126 = -774/126 - After reducing the fraction, the answer is -43/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14-81/9 40/28-81/9 40/14-81/18 40/42-81/9 40/14-81/27 40/70-81/9 40/14-81/45 40/98-81/9 40/14-81/63