Subtract 21/70 from 98/12
1st number: 8 2/12, 2nd number: 21/70
98/12 - 21/70 is 118/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
98/12 = 98 × 35/12 × 35 = 3430/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
21/70 = 21 × 6/70 × 6 = 126/420 - Subtract the two like fractions:
3430/420 - 126/420 = 3430 - 126/420 = 3304/420 - After reducing the fraction, the answer is 118/15
- In mixed form: 713/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/12-42/70 98/24-21/70 98/12-63/70 98/36-21/70 98/60-21/70 98/84-21/70