Add 12/9 and 9/63
1st number: 1 3/9, 2nd number: 9/63
12/9 + 9/63 is 31/21.
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,
12/9 = 12 × 7/9 × 7 = 84/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
9/63 = 9 × 1/63 × 1 = 9/63 - Add the two like fractions:
84/63 + 9/63 = 84 + 9/63 = 93/63 - 93/63 simplified gives 31/21
- So, 12/9 + 9/63 = 31/21
In mixed form: 110/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/9+9/63 12/9+18/63 12/18+9/63 36/9+9/63 12/9+27/63 12/27+9/63 60/9+9/63 12/9+45/63 12/45+9/63 84/9+9/63 12/63+9/63