Subtract 98/9 from 21/49
1st number: 21/49, 2nd number: 10 8/9
21/49 - 98/9 is -659/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 9 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
21/49 = 21 × 9/49 × 9 = 189/441 - Likewise, for the 2nd fraction, since 9 × 49 = 441,
98/9 = 98 × 49/9 × 49 = 4802/441 - Subtract the two like fractions:
189/441 - 4802/441 = 189 - 4802/441 = -4613/441 - After reducing the fraction, the answer is -659/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/49-98/9 21/98-98/9 21/49-98/18 63/49-98/9 21/49-98/27 21/49-98/45 21/49-98/63