Subtract 40/56 from 1/70
1/70 - 40/56 is -7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
1/70 = 1 × 4/70 × 4 = 4/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
40/56 = 40 × 5/56 × 5 = 200/280 - Subtract the two like fractions:
4/280 - 200/280 = 4 - 200/280 = -196/280 - After reducing the fraction, the answer is -7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70-40/56 1/70-80/56 3/70-40/56 5/70-40/56 7/70-40/56