Subtract 14/7 from 8/18
1st number: 8/18, 2nd number: 2 0/7
8/18 - 14/7 is -14/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
8/18 = 8 × 7/18 × 7 = 56/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
14/7 = 14 × 18/7 × 18 = 252/126 - Subtract the two like fractions:
56/126 - 252/126 = 56 - 252/126 = -196/126 - After reducing the fraction, the answer is -14/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/18-14/7 8/18-28/7 8/36-14/7 24/18-14/7 8/18-42/7 8/54-14/7 8/18-14/21 40/18-14/7 8/18-70/7 8/90-14/7 8/18-14/35 56/18-14/7 8/18-98/7 8/18-14/49