Subtract 98/8 from 40/70
1st number: 40/70, 2nd number: 12 2/8
40/70 - 98/8 is -327/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
40/70 = 40 × 4/70 × 4 = 160/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
98/8 = 98 × 35/8 × 35 = 3430/280 - Subtract the two like fractions:
160/280 - 3430/280 = 160 - 3430/280 = -3270/280 - After reducing the fraction, the answer is -327/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70-98/8 40/70-98/16 40/70-98/24 40/70-98/40 40/70-98/56