Add 6/9 and 21/35
6/9 + 21/35 is 19/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 9 × 35 = 315,
6/9 = 6 × 35/9 × 35 = 210/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
21/35 = 21 × 9/35 × 9 = 189/315 - Add the two like fractions:
210/315 + 189/315 = 210 + 189/315 = 399/315 - 399/315 simplified gives 19/15
- So, 6/9 + 21/35 = 19/15
In mixed form: 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/9+21/35 6/9+42/35 6/18+21/35 6/9+21/70 18/9+21/35 6/9+63/35 6/27+21/35 30/9+21/35 6/45+21/35 42/9+21/35 6/63+21/35