Subtract 98/9 from 63/7
1st number: 9 0/7, 2nd number: 10 8/9
63/7 - 98/9 is -17/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
63/7 = 63 × 9/7 × 9 = 567/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
98/9 = 98 × 7/9 × 7 = 686/63 - Subtract the two like fractions:
567/63 - 686/63 = 567 - 686/63 = -119/63 - After reducing the fraction, the answer is -17/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/14-98/9 63/7-98/18 63/21-98/9 63/7-98/27 63/35-98/9 63/7-98/45 63/49-98/9 63/7-98/63