Subtract 56/7 from 98/18
1st number: 5 8/18, 2nd number: 8 0/7
98/18 - 56/7 is -23/9.
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,
98/18 = 98 × 7/18 × 7 = 686/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
56/7 = 56 × 18/7 × 18 = 1008/126 - Subtract the two like fractions:
686/126 - 1008/126 = 686 - 1008/126 = -322/126 - After reducing the fraction, the answer is -23/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/36-56/7 98/18-56/14 98/54-56/7 98/18-56/21 98/90-56/7 98/18-56/35 98/18-56/49