Subtract 98/9 from 21/25
1st number: 21/25, 2nd number: 10 8/9
21/25 - 98/9 is -2261/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
21/25 = 21 × 9/25 × 9 = 189/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
98/9 = 98 × 25/9 × 25 = 2450/225 - Subtract the two like fractions:
189/225 - 2450/225 = 189 - 2450/225 = -2261/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25-98/9 21/50-98/9 21/25-98/18 63/25-98/9 21/75-98/9 21/25-98/27 21/25-98/45 21/25-98/63