Subtract 21/5 from 98/15
1st number: 6 8/15, 2nd number: 4 1/5
98/15 - 21/5 is 7/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 15 × 1 = 15,
98/15 = 98 × 1/15 × 1 = 98/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
21/5 = 21 × 3/5 × 3 = 63/15 - Subtract the two like fractions:
98/15 - 63/15 = 98 - 63/15 = 35/15 - After reducing the fraction, the answer is 7/3
- In mixed form: 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/15-42/5 98/30-21/5 98/15-21/10 98/15-63/5 98/45-21/5 98/15-21/15 98/75-21/5 98/15-21/25 98/15-21/35