Add 9/2 and 5/15, Solve 4 1/2 + 5/15 as a fraction

Add 9/2 and 5/15

1^st number: 4 1/2, 2^nd number: 5/15

9/2 + 5/15 is 29/6.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30

Next, find the equivalent fraction of both fractional numbers with denominator 30
For the 1st fraction, since 2 × 15 = 30,
9/2 = 9 × 15/2 × 15 = 135/30
Likewise, for the 2nd fraction, since 15 × 2 = 30,
5/15 = 5 × 2/15 × 2 = 10/30
Add the two like fractions:
135/30 + 10/30 = 135 + 10/30 = 145/30
145/30 simplified gives 29/6
So, 9/2 + 5/15 = 29/6
In mixed form: 45/6

MathStep (Works offline)

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