Add 12/14 and 14/5, Solve 12/14 + 2 4/5 as a fraction

Add 12/14 and 14/5

1^st number: 12/14, 2^nd number: 2 4/5

12/14 + 14/5 is 128/35.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 5 is 70

Next, find the equivalent fraction of both fractional numbers with denominator 70
For the 1st fraction, since 14 × 5 = 70,
12/14 = 12 × 5/14 × 5 = 60/70
Likewise, for the 2nd fraction, since 5 × 14 = 70,
14/5 = 14 × 14/5 × 14 = 196/70
Add the two like fractions:
60/70 + 196/70 = 60 + 196/70 = 256/70
256/70 simplified gives 128/35
So, 12/14 + 14/5 = 128/35
In mixed form: 323/35

MathStep (Works offline)

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