Subtract 8/20 from 27/7
1st number: 3 6/7, 2nd number: 8/20
27/7 - 8/20 is 121/35.
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,
27/7 = 27 × 20/7 × 20 = 540/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
8/20 = 8 × 7/20 × 7 = 56/140 - Subtract the two like fractions:
540/140 - 56/140 = 540 - 56/140 = 484/140 - After reducing the fraction, the answer is 121/35
- In mixed form: 316/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7-8/20 27/7-16/20 27/14-8/20 27/7-8/40 81/7-8/20 27/7-24/20 27/21-8/20 27/7-8/60 27/7-40/20 27/35-8/20 27/7-56/20 27/49-8/20