Add 5/3 and 21/42
1st number: 1 2/3, 2nd number: 21/42
5/3 + 21/42 is 13/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
5/3 = 5 × 14/3 × 14 = 70/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
21/42 = 21 × 1/42 × 1 = 21/42 - Add the two like fractions:
70/42 + 21/42 = 70 + 21/42 = 91/42 - 91/42 simplified gives 13/6
- So, 5/3 + 21/42 = 13/6
In mixed form: 21/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/3+21/42 5/6+21/42 5/3+21/84 15/3+21/42 5/3+63/42 5/9+21/42 25/3+21/42 5/15+21/42 35/3+21/42 5/21+21/42