Subtract 1/21 from 98/30
1st number: 3 8/30, 2nd number: 1/21
98/30 - 1/21 is 338/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
98/30 = 98 × 7/30 × 7 = 686/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
1/21 = 1 × 10/21 × 10 = 10/210 - Subtract the two like fractions:
686/210 - 10/210 = 686 - 10/210 = 676/210 - After reducing the fraction, the answer is 338/105
- In mixed form: 323/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/30-2/21 98/60-1/21 98/30-1/42 98/30-3/21 98/90-1/21 98/30-1/63 98/30-5/21 98/30-7/21