Add 45/3 and 45/18, Solve 15 0/3 + 2 9/18 as a fraction

Add 45/3 and 45/18

1^st number: 15 0/3, 2^nd number: 2 9/18

45/3 + 45/18 is 35/2.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 18 is 18

Next, find the equivalent fraction of both fractional numbers with denominator 18
For the 1st fraction, since 3 × 6 = 18,
45/3 = 45 × 6/3 × 6 = 270/18
Likewise, for the 2nd fraction, since 18 × 1 = 18,
45/18 = 45 × 1/18 × 1 = 45/18
Add the two like fractions:
270/18 + 45/18 = 270 + 45/18 = 315/18
315/18 simplified gives 35/2
So, 45/3 + 45/18 = 35/2
In mixed form: 171/2

MathStep (Works offline)

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