Subtract 14/18 from 40/7
1st number: 5 5/7, 2nd number: 14/18
40/7 - 14/18 is 311/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
40/7 = 40 × 18/7 × 18 = 720/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
14/18 = 14 × 7/18 × 7 = 98/126 - Subtract the two like fractions:
720/126 - 98/126 = 720 - 98/126 = 622/126 - After reducing the fraction, the answer is 311/63
- In mixed form: 459/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/7-14/18 40/7-28/18 40/14-14/18 40/7-14/36 40/7-42/18 40/21-14/18 40/7-14/54 40/7-70/18 40/35-14/18 40/7-14/90 40/7-98/18 40/49-14/18