Subtract 75/7 from 2/18
1st number: 2/18, 2nd number: 10 5/7
2/18 - 75/7 is -668/63.
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,
2/18 = 2 × 7/18 × 7 = 14/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
75/7 = 75 × 18/7 × 18 = 1350/126 - Subtract the two like fractions:
14/126 - 1350/126 = 14 - 1350/126 = -1336/126 - After reducing the fraction, the answer is -668/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/18-75/7 2/36-75/7 2/18-75/14 6/18-75/7 2/54-75/7 2/18-75/21 10/18-75/7 2/90-75/7 2/18-75/35 14/18-75/7 2/18-75/49