Add 6/9 and 12/45
6/9 + 12/45 is 14/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
6/9 = 6 × 5/9 × 5 = 30/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
12/45 = 12 × 1/45 × 1 = 12/45 - Add the two like fractions:
30/45 + 12/45 = 30 + 12/45 = 42/45 - 42/45 simplified gives 14/15
- So, 6/9 + 12/45 = 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+12/45 6/9+24/45 6/18+12/45 6/9+12/90 18/9+12/45 6/9+36/45 6/27+12/45 30/9+12/45 6/9+60/45 6/45+12/45 42/9+12/45 6/9+84/45 6/63+12/45