Subtract 21/30 from 98/21
1st number: 4 14/21, 2nd number: 21/30
98/21 - 21/30 is 119/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
98/21 = 98 × 10/21 × 10 = 980/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
21/30 = 21 × 7/30 × 7 = 147/210 - Subtract the two like fractions:
980/210 - 147/210 = 980 - 147/210 = 833/210 - After reducing the fraction, the answer is 119/30
- In mixed form: 329/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21-42/30 98/42-21/30 98/21-21/60 98/21-63/30 98/63-21/30 98/21-21/90