Add 27/9 and 15/63
1st number: 3 0/9, 2nd number: 15/63
27/9 + 15/63 is 68/21.
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,
27/9 = 27 × 7/9 × 7 = 189/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
15/63 = 15 × 1/63 × 1 = 15/63 - Add the two like fractions:
189/63 + 15/63 = 189 + 15/63 = 204/63 - 204/63 simplified gives 68/21
- So, 27/9 + 15/63 = 68/21
In mixed form: 35/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/9+15/63 27/9+30/63 27/18+15/63 81/9+15/63 27/9+45/63 27/9+75/63 27/45+15/63 27/63+15/63