Add 15/3 and 14/21
1st number: 5 0/3, 2nd number: 14/21
15/3 + 14/21 is 17/3.
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,
15/3 = 15 × 7/3 × 7 = 105/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
14/21 = 14 × 1/21 × 1 = 14/21 - Add the two like fractions:
105/21 + 14/21 = 105 + 14/21 = 119/21 - 119/21 simplified gives 17/3
- So, 15/3 + 14/21 = 17/3
In mixed form: 52/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/3+14/21 15/3+28/21 15/6+14/21 15/3+14/42 45/3+14/21 15/3+42/21 15/9+14/21 15/3+14/63 75/3+14/21 15/3+70/21 15/3+98/21 15/21+14/21