Add 28/9 and 12/42
1st number: 3 1/9, 2nd number: 12/42
28/9 + 12/42 is 214/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
28/9 = 28 × 14/9 × 14 = 392/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
12/42 = 12 × 3/42 × 3 = 36/126 - Add the two like fractions:
392/126 + 36/126 = 392 + 36/126 = 428/126 - 428/126 simplified gives 214/63
- So, 28/9 + 12/42 = 214/63
In mixed form: 325/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9+12/42 28/9+24/42 28/18+12/42 28/9+12/84 84/9+12/42 28/9+36/42 28/27+12/42 28/9+60/42 28/45+12/42 28/9+84/42 28/63+12/42