Subtract 6/20 from 98/21
1st number: 4 14/21, 2nd number: 6/20
98/21 - 6/20 is 131/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
98/21 = 98 × 20/21 × 20 = 1960/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
6/20 = 6 × 21/20 × 21 = 126/420 - Subtract the two like fractions:
1960/420 - 126/420 = 1960 - 126/420 = 1834/420 - After reducing the fraction, the answer is 131/30
- In mixed form: 411/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21-12/20 98/42-6/20 98/21-6/40 98/21-18/20 98/63-6/20 98/21-6/60 98/21-30/20 98/21-42/20