Add 15/7 and 28/63
1st number: 2 1/7, 2nd number: 28/63
15/7 + 28/63 is 163/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
15/7 = 15 × 9/7 × 9 = 135/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
28/63 = 28 × 1/63 × 1 = 28/63 - Add the two like fractions:
135/63 + 28/63 = 135 + 28/63 = 163/63 - So, 15/7 + 28/63 = 163/63
In mixed form: 237/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7+28/63 15/7+56/63 15/14+28/63 45/7+28/63 15/7+84/63 15/21+28/63 75/7+28/63 15/35+28/63 15/49+28/63