Subtract 3/70 from 5/7
5/7 - 3/70 is 47/70.
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,
5/7 = 5 × 10/7 × 10 = 50/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
3/70 = 3 × 1/70 × 1 = 3/70 - Subtract the two like fractions:
50/70 - 3/70 = 50 - 3/70 = 47/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/7-3/70 5/7-6/70 5/14-3/70 15/7-3/70 5/7-9/70 5/21-3/70 25/7-3/70 5/7-15/70 5/35-3/70 35/7-3/70 5/7-21/70 5/49-3/70