Subtract 9/35 from 7/70
7/70 - 9/35 is -11/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
7/70 = 7 × 1/70 × 1 = 7/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
9/35 = 9 × 2/35 × 2 = 18/70 - Subtract the two like fractions:
7/70 - 18/70 = 7 - 18/70 = -11/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70-9/35 7/70-18/35 7/70-9/70 21/70-9/35 7/70-27/35 35/70-9/35 7/70-45/35 49/70-9/35 7/70-63/35