Subtract 98/70 from 7/12
1st number: 7/12, 2nd number: 1 28/70
7/12 - 98/70 is -49/60.
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,
7/12 = 7 × 35/12 × 35 = 245/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
98/70 = 98 × 6/70 × 6 = 588/420 - Subtract the two like fractions:
245/420 - 588/420 = 245 - 588/420 = -343/420 - After reducing the fraction, the answer is -49/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12-98/70 7/24-98/70 21/12-98/70 7/36-98/70 35/12-98/70 7/60-98/70 49/12-98/70 7/84-98/70