Subtract 84/28 from 20/14
1st number: 1 6/14, 2nd number: 3 0/28
20/14 - 84/28 is -11/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 14 × 2 = 28,
20/14 = 20 × 2/14 × 2 = 40/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
84/28 = 84 × 1/28 × 1 = 84/28 - Subtract the two like fractions:
40/28 - 84/28 = 40 - 84/28 = -44/28 - After reducing the fraction, the answer is -11/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14-84/28 20/28-84/28 20/14-84/56 60/14-84/28 20/42-84/28 20/70-84/28 20/98-84/28