Subtract 45/70 from 40/7
1st number: 5 5/7, 2nd number: 45/70
40/7 - 45/70 is 71/14.
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,
40/7 = 40 × 10/7 × 10 = 400/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
45/70 = 45 × 1/70 × 1 = 45/70 - Subtract the two like fractions:
400/70 - 45/70 = 400 - 45/70 = 355/70 - After reducing the fraction, the answer is 71/14
- In mixed form: 51/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/7-45/70 40/7-90/70 40/14-45/70 40/21-45/70 40/35-45/70 40/49-45/70