Add 12/7 and 28/18
1st number: 1 5/7, 2nd number: 1 10/18
12/7 + 28/18 is 206/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
12/7 = 12 × 18/7 × 18 = 216/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
28/18 = 28 × 7/18 × 7 = 196/126 - Add the two like fractions:
216/126 + 196/126 = 216 + 196/126 = 412/126 - 412/126 simplified gives 206/63
- So, 12/7 + 28/18 = 206/63
In mixed form: 317/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/7+28/18 12/7+56/18 12/14+28/18 12/7+28/36 36/7+28/18 12/7+84/18 12/21+28/18 12/7+28/54 60/7+28/18 12/35+28/18 12/7+28/90 84/7+28/18 12/49+28/18