Add 21/3 and 14/5
1st number: 7 0/3, 2nd number: 2 4/5
21/3 + 14/5 is 49/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
21/3 = 21 × 5/3 × 5 = 105/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
14/5 = 14 × 3/5 × 3 = 42/15 - Add the two like fractions:
105/15 + 42/15 = 105 + 42/15 = 147/15 - 147/15 simplified gives 49/5
- So, 21/3 + 14/5 = 49/5
In mixed form: 94/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/3+14/5 21/3+28/5 21/6+14/5 21/3+14/10 63/3+14/5 21/3+42/5 21/9+14/5 21/3+14/15 21/3+70/5 21/15+14/5 21/3+14/25 21/3+98/5 21/3+14/35