Add 21/3 and 49/15
1st number: 7 0/3, 2nd number: 3 4/15
21/3 + 49/15 is 154/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 15 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 15 × 1 = 15,
49/15 = 49 × 1/15 × 1 = 49/15 - Add the two like fractions:
105/15 + 49/15 = 105 + 49/15 = 154/15 - So, 21/3 + 49/15 = 154/15
In mixed form: 104/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/3+49/15 21/3+98/15 21/6+49/15 21/3+49/30 63/3+49/15 21/9+49/15 21/3+49/45 21/15+49/15 21/3+49/75