Add 10/3 and 18/80, Solve 3 1/3 + 18/80 as a fraction

Add 10/3 and 18/80

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

10/3 + 18/80 is 427/120.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 80 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 3 × 80 = 240,
10/3 = 10 × 80/3 × 80 = 800/240
Likewise, for the 2nd fraction, since 80 × 3 = 240,
18/80 = 18 × 3/80 × 3 = 54/240
Add the two like fractions:
800/240 + 54/240 = 800 + 54/240 = 854/240
854/240 simplified gives 427/120
So, 10/3 + 18/80 = 427/120
In mixed form: 367/120

MathStep (Works offline)

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