Subtract 75/30 from 98/21
1st number: 4 14/21, 2nd number: 2 15/30
98/21 - 75/30 is 13/6.
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,
75/30 = 75 × 7/30 × 7 = 525/210 - Subtract the two like fractions:
980/210 - 525/210 = 980 - 525/210 = 455/210 - After reducing the fraction, the answer is 13/6
- In mixed form: 21/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/42-75/30 98/21-75/60 98/63-75/30 98/21-75/90