Add 4/5 and 30/12, Solve 4/5 + 2 6/12 as a fraction

Add 4/5 and 30/12

1^st number: 4/5, 2^nd number: 2 6/12

4/5 + 30/12 is 33/10.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 5 × 12 = 60,
4/5 = 4 × 12/5 × 12 = 48/60
Likewise, for the 2nd fraction, since 12 × 5 = 60,
30/12 = 30 × 5/12 × 5 = 150/60
Add the two like fractions:
48/60 + 150/60 = 48 + 150/60 = 198/60
198/60 simplified gives 33/10
So, 4/5 + 30/12 = 33/10
In mixed form: 33/10

MathStep (Works offline)

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