Subtract 20/7 from 36/4
1st number: 9 0/4, 2nd number: 2 6/7
36/4 - 20/7 is 43/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
36/4 = 36 × 7/4 × 7 = 252/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
20/7 = 20 × 4/7 × 4 = 80/28 - Subtract the two like fractions:
252/28 - 80/28 = 252 - 80/28 = 172/28 - After reducing the fraction, the answer is 43/7
- In mixed form: 61/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4-20/7 36/4-40/7 36/8-20/7 36/4-20/14 36/4-60/7 36/12-20/7 36/4-20/21 36/20-20/7 36/4-20/35 36/28-20/7 36/4-20/49