Add 6/2 and 18/80, Solve 3 0/2 + 18/80 as a fraction

Add 6/2 and 18/80

1^st number: 3 0/2, 2^nd number: 18/80

6/2 + 18/80 is 129/40.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 2 × 40 = 80,
6/2 = 6 × 40/2 × 40 = 240/80
Likewise, for the 2nd fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80
Add the two like fractions:
240/80 + 18/80 = 240 + 18/80 = 258/80
258/80 simplified gives 129/40
So, 6/2 + 18/80 = 129/40
In mixed form: 39/40

MathStep (Works offline)

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