Subtract 98/21 from 14/30
1st number: 14/30, 2nd number: 4 14/21
14/30 - 98/21 is -21/5.
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,
14/30 = 14 × 7/30 × 7 = 98/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
98/21 = 98 × 10/21 × 10 = 980/210 - Subtract the two like fractions:
98/210 - 980/210 = 98 - 980/210 = -882/210 - After reducing the fraction, the answer is -21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/30-98/21 14/60-98/21 14/30-98/42 42/30-98/21 14/90-98/21 14/30-98/63 70/30-98/21 98/30-98/21