Subtract 4/20 from 56/7
1st number: 8 0/7, 2nd number: 4/20
56/7 - 4/20 is 39/5.
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,
56/7 = 56 × 20/7 × 20 = 1120/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
4/20 = 4 × 7/20 × 7 = 28/140 - Subtract the two like fractions:
1120/140 - 28/140 = 1120 - 28/140 = 1092/140 - After reducing the fraction, the answer is 39/5
- In mixed form: 74/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7-8/20 56/14-4/20 56/7-4/40 56/7-12/20 56/21-4/20 56/7-4/60 56/35-4/20 56/7-28/20 56/49-4/20