Subtract 40/7 from 9/70
1st number: 9/70, 2nd number: 5 5/7
9/70 - 40/7 is -391/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
9/70 = 9 × 1/70 × 1 = 9/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
40/7 = 40 × 10/7 × 10 = 400/70 - Subtract the two like fractions:
9/70 - 400/70 = 9 - 400/70 = -391/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/70-40/7 9/70-80/7 9/70-40/14 27/70-40/7 9/70-40/21 45/70-40/7 9/70-40/35 63/70-40/7 9/70-40/49