Subtract 21/9 from 98/63
1st number: 1 35/63, 2nd number: 2 3/9
98/63 - 21/9 is -7/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
98/63 = 98 × 1/63 × 1 = 98/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
21/9 = 21 × 7/9 × 7 = 147/63 - Subtract the two like fractions:
98/63 - 147/63 = 98 - 147/63 = -49/63 - After reducing the fraction, the answer is -7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/63-42/9 98/63-21/18 98/63-63/9 98/63-21/27 98/63-21/45 98/63-21/63