Subtract 20/7 from 12/6
1st number: 2 0/6, 2nd number: 2 6/7
12/6 - 20/7 is -6/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
12/6 = 12 × 7/6 × 7 = 84/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
20/7 = 20 × 6/7 × 6 = 120/42 - Subtract the two like fractions:
84/42 - 120/42 = 84 - 120/42 = -36/42 - After reducing the fraction, the answer is -6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/6-20/7 12/6-40/7 12/6-20/14 36/6-20/7 12/6-60/7 12/18-20/7 12/6-20/21 60/6-20/7 12/30-20/7 12/6-20/35 84/6-20/7 12/42-20/7 12/6-20/49