Subtract 3/8 from 10/70
10/70 - 3/8 is -13/56.
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,
10/70 = 10 × 4/70 × 4 = 40/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
3/8 = 3 × 35/8 × 35 = 105/280 - Subtract the two like fractions:
40/280 - 105/280 = 40 - 105/280 = -65/280 - After reducing the fraction, the answer is -13/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/70-3/8 10/70-6/8 10/70-3/16 30/70-3/8 10/70-9/8 10/70-3/24 50/70-3/8 10/70-15/8 10/70-3/40 10/70-21/8 10/70-3/56