Subtract 98/6 from 21/28
1st number: 21/28, 2nd number: 16 2/6
21/28 - 98/6 is -187/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 6 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
21/28 = 21 × 3/28 × 3 = 63/84 - Likewise, for the 2nd fraction, since 6 × 14 = 84,
98/6 = 98 × 14/6 × 14 = 1372/84 - Subtract the two like fractions:
63/84 - 1372/84 = 63 - 1372/84 = -1309/84 - After reducing the fraction, the answer is -187/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/28-98/6 21/56-98/6 21/28-98/12 63/28-98/6 21/84-98/6 21/28-98/18 21/28-98/30 21/28-98/42