Subtract 10/40 from 1/70
1/70 - 10/40 is -33/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 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 40 × 7 = 280,
10/40 = 10 × 7/40 × 7 = 70/280 - Subtract the two like fractions:
4/280 - 70/280 = 4 - 70/280 = -66/280 - After reducing the fraction, the answer is -33/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70-10/40 1/70-20/40 1/70-10/80 3/70-10/40 1/70-30/40 5/70-10/40 1/70-50/40 7/70-10/40 1/70-70/40