Add 6/9 and 63/84
6/9 + 63/84 is 17/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
6/9 = 6 × 28/9 × 28 = 168/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
63/84 = 63 × 3/84 × 3 = 189/252 - Add the two like fractions:
168/252 + 189/252 = 168 + 189/252 = 357/252 - 357/252 simplified gives 17/12
- So, 6/9 + 63/84 = 17/12
In mixed form: 15/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/9+63/84 6/18+63/84 18/9+63/84 6/27+63/84 30/9+63/84 6/45+63/84 42/9+63/84 6/63+63/84