Subtract 14/7 from 40/12
1st number: 3 4/12, 2nd number: 2 0/7
40/12 - 14/7 is 4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
40/12 = 40 × 7/12 × 7 = 280/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
14/7 = 14 × 12/7 × 12 = 168/84 - Subtract the two like fractions:
280/84 - 168/84 = 280 - 168/84 = 112/84 - After reducing the fraction, the answer is 4/3
- In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-14/7 40/12-28/7 40/24-14/7 40/12-42/7 40/36-14/7 40/12-14/21 40/12-70/7 40/60-14/7 40/12-14/35 40/12-98/7 40/84-14/7 40/12-14/49