Subtract 20/70 from 98/12
1st number: 8 2/12, 2nd number: 20/70
98/12 - 20/70 is 331/42.
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,
20/70 = 20 × 6/70 × 6 = 120/420 - Subtract the two like fractions:
3430/420 - 120/420 = 3430 - 120/420 = 3310/420 - After reducing the fraction, the answer is 331/42
- In mixed form: 737/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/12-40/70 98/24-20/70 98/12-60/70 98/36-20/70 98/60-20/70 98/84-20/70