Subtract 84/7 from 20/6
1st number: 3 2/6, 2nd number: 12 0/7
20/6 - 84/7 is -26/3.
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,
20/6 = 20 × 7/6 × 7 = 140/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
84/7 = 84 × 6/7 × 6 = 504/42 - Subtract the two like fractions:
140/42 - 504/42 = 140 - 504/42 = -364/42 - After reducing the fraction, the answer is -26/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/6-84/7 20/12-84/7 20/6-84/14 60/6-84/7 20/18-84/7 20/6-84/21 20/30-84/7 20/6-84/35 20/42-84/7 20/6-84/49