Subtract 9/70 from 6/7
6/7 - 9/70 is 51/70.
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,
6/7 = 6 × 10/7 × 10 = 60/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
9/70 = 9 × 1/70 × 1 = 9/70 - Subtract the two like fractions:
60/70 - 9/70 = 60 - 9/70 = 51/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/7-9/70 6/7-18/70 6/14-9/70 18/7-9/70 6/7-27/70 6/21-9/70 30/7-9/70 6/7-45/70 6/35-9/70 42/7-9/70 6/7-63/70 6/49-9/70