Subtract 20/6 from 84/28
1st number: 3 0/28, 2nd number: 3 2/6
84/28 - 20/6 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 6 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
84/28 = 84 × 3/28 × 3 = 252/84 - Likewise, for the 2nd fraction, since 6 × 14 = 84,
20/6 = 20 × 14/6 × 14 = 280/84 - Subtract the two like fractions:
252/84 - 280/84 = 252 - 280/84 = -28/84 - After reducing the fraction, the answer is -1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28-40/6 84/56-20/6 84/28-20/12 84/28-60/6 84/28-20/18 84/28-20/30 84/28-20/42