Add 7/12 and 90/24, Solve 7/12 + 3 18/24 as a fraction

Add 7/12 and 90/24

1^st number: 7/12, 2^nd number: 3 18/24

7/12 + 90/24 is 13/3.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 24 is 24

Next, find the equivalent fraction of both fractional numbers with denominator 24
For the 1st fraction, since 12 × 2 = 24,
7/12 = 7 × 2/12 × 2 = 14/24
Likewise, for the 2nd fraction, since 24 × 1 = 24,
90/24 = 90 × 1/24 × 1 = 90/24
Add the two like fractions:
14/24 + 90/24 = 14 + 90/24 = 104/24
104/24 simplified gives 13/3
So, 7/12 + 90/24 = 13/3
In mixed form: 41/3

MathStep (Works offline)

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