Subtract 10/70 from 3/7
3/7 - 10/70 is 2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
3/7 = 3 × 10/7 × 10 = 30/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
10/70 = 10 × 1/70 × 1 = 10/70 - Subtract the two like fractions:
30/70 - 10/70 = 30 - 10/70 = 20/70 - After reducing the fraction, the answer is 2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/7-10/70 3/7-20/70 3/14-10/70 9/7-10/70 3/7-30/70 3/21-10/70 15/7-10/70 3/7-50/70 3/35-10/70 21/7-10/70 3/49-10/70