Subtract 21/10 from 98/28
1st number: 3 14/28, 2nd number: 2 1/10
98/28 - 21/10 is 7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 10 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
98/28 = 98 × 5/28 × 5 = 490/140 - Likewise, for the 2nd fraction, since 10 × 14 = 140,
21/10 = 21 × 14/10 × 14 = 294/140 - Subtract the two like fractions:
490/140 - 294/140 = 490 - 294/140 = 196/140 - After reducing the fraction, the answer is 7/5
- In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28-42/10 98/56-21/10 98/28-21/20 98/28-63/10 98/84-21/10 98/28-21/30 98/28-21/50 98/28-21/70