Subtract 10/7 from 9/18
1st number: 9/18, 2nd number: 1 3/7
9/18 - 10/7 is -13/14.
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,
9/18 = 9 × 7/18 × 7 = 63/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
10/7 = 10 × 18/7 × 18 = 180/126 - Subtract the two like fractions:
63/126 - 180/126 = 63 - 180/126 = -117/126 - After reducing the fraction, the answer is -13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18-20/7 9/36-10/7 9/18-10/14 27/18-10/7 9/18-30/7 9/54-10/7 9/18-10/21 45/18-10/7 9/18-50/7 9/90-10/7 9/18-10/35 63/18-10/7 9/18-70/7 9/18-10/49