Subtract 20/6 from 28/14
1st number: 2 0/14, 2nd number: 3 2/6
28/14 - 20/6 is -4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
28/14 = 28 × 3/14 × 3 = 84/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
20/6 = 20 × 7/6 × 7 = 140/42 - Subtract the two like fractions:
84/42 - 140/42 = 84 - 140/42 = -56/42 - After reducing the fraction, the answer is -4/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/14-20/6 28/14-40/6 28/14-20/12 84/14-20/6 28/14-60/6 28/42-20/6 28/14-20/18 28/70-20/6 28/14-20/30 28/98-20/6 28/14-20/42