Subtract 6/7 from 10/18
10/18 - 6/7 is -19/63.
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,
10/18 = 10 × 7/18 × 7 = 70/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
6/7 = 6 × 18/7 × 18 = 108/126 - Subtract the two like fractions:
70/126 - 108/126 = 70 - 108/126 = -38/126 - After reducing the fraction, the answer is -19/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18-6/7 10/18-12/7 10/36-6/7 10/18-6/14 30/18-6/7 10/18-18/7 10/54-6/7 10/18-6/21 50/18-6/7 10/18-30/7 10/90-6/7 10/18-6/35 70/18-6/7 10/18-42/7 10/18-6/49