Add 28/3 and 12/14, Solve 9 1/3 + 12/14 as a fraction

Add 28/3 and 12/14

1^st number: 9 1/3, 2^nd number: 12/14

28/3 + 12/14 is 214/21.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 14 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 3 × 14 = 42,
28/3 = 28 × 14/3 × 14 = 392/42
Likewise, for the 2nd fraction, since 14 × 3 = 42,
12/14 = 12 × 3/14 × 3 = 36/42
Add the two like fractions:
392/42 + 36/42 = 392 + 36/42 = 428/42
428/42 simplified gives 214/21
So, 28/3 + 12/14 = 214/21
In mixed form: 104/21

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad