Subtract 40/8 from 8/70
1st number: 8/70, 2nd number: 5 0/8
8/70 - 40/8 is -171/35.
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,
8/70 = 8 × 4/70 × 4 = 32/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
40/8 = 40 × 35/8 × 35 = 1400/280 - Subtract the two like fractions:
32/280 - 1400/280 = 32 - 1400/280 = -1368/280 - After reducing the fraction, the answer is -171/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/70-40/8 8/70-80/8 8/70-40/16 24/70-40/8 8/70-40/24 40/70-40/8 56/70-40/8 8/70-40/56