Subtract 4/20 from 40/7
1st number: 5 5/7, 2nd number: 4/20
40/7 - 4/20 is 193/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
40/7 = 40 × 20/7 × 20 = 800/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
4/20 = 4 × 7/20 × 7 = 28/140 - Subtract the two like fractions:
800/140 - 28/140 = 800 - 28/140 = 772/140 - After reducing the fraction, the answer is 193/35
- In mixed form: 518/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/7-4/20 40/7-8/20 40/14-4/20 40/7-4/40 40/7-12/20 40/21-4/20 40/7-4/60 40/35-4/20 40/7-28/20 40/49-4/20