Add 4/3 and 84/21
1st number: 1 1/3, 2nd number: 4 0/21
4/3 + 84/21 is 16/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
4/3 = 4 × 7/3 × 7 = 28/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
84/21 = 84 × 1/21 × 1 = 84/21 - Add the two like fractions:
28/21 + 84/21 = 28 + 84/21 = 112/21 - 112/21 simplified gives 16/3
- So, 4/3 + 84/21 = 16/3
In mixed form: 51/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/3+84/21 4/6+84/21 4/3+84/42 12/3+84/21 4/9+84/21 4/3+84/63 20/3+84/21 4/15+84/21 28/3+84/21 4/21+84/21