Add 15/9 and 28/63
1st number: 1 6/9, 2nd number: 28/63
15/9 + 28/63 is 19/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
15/9 = 15 × 7/9 × 7 = 105/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
28/63 = 28 × 1/63 × 1 = 28/63 - Add the two like fractions:
105/63 + 28/63 = 105 + 28/63 = 133/63 - 133/63 simplified gives 19/9
- So, 15/9 + 28/63 = 19/9
In mixed form: 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9+28/63 15/9+56/63 15/18+28/63 45/9+28/63 15/9+84/63 15/27+28/63 75/9+28/63 15/45+28/63 15/63+28/63