Add 12/28 and 35/9
1st number: 12/28, 2nd number: 3 8/9
12/28 + 35/9 is 272/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
12/28 = 12 × 9/28 × 9 = 108/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
35/9 = 35 × 28/9 × 28 = 980/252 - Add the two like fractions:
108/252 + 980/252 = 108 + 980/252 = 1088/252 - 1088/252 simplified gives 272/63
- So, 12/28 + 35/9 = 272/63
In mixed form: 420/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/28+35/9 12/28+70/9 12/56+35/9 12/28+35/18 36/28+35/9 12/84+35/9 12/28+35/27 60/28+35/9 12/28+35/45 84/28+35/9 12/28+35/63