Subtract 18/84 from 20/14
1st number: 1 6/14, 2nd number: 18/84
20/14 - 18/84 is 17/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
20/14 = 20 × 6/14 × 6 = 120/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
18/84 = 18 × 1/84 × 1 = 18/84 - Subtract the two like fractions:
120/84 - 18/84 = 120 - 18/84 = 102/84 - After reducing the fraction, the answer is 17/14
- In mixed form: 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14-18/84 20/14-36/84 20/28-18/84 60/14-18/84 20/14-54/84 20/42-18/84 20/14-90/84 20/70-18/84 20/98-18/84