Subtract 20/84 from 8/3
1st number: 2 2/3, 2nd number: 20/84
8/3 - 20/84 is 17/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 3 × 28 = 84,
8/3 = 8 × 28/3 × 28 = 224/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84 - Subtract the two like fractions:
224/84 - 20/84 = 224 - 20/84 = 204/84 - After reducing the fraction, the answer is 17/7
- In mixed form: 23/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/3-20/84 8/3-40/84 8/6-20/84 24/3-20/84 8/3-60/84 8/9-20/84 40/3-20/84 8/15-20/84 56/3-20/84 8/21-20/84