Add 81/2 and 9/24, Solve 40 1/2 + 9/24 as a fraction

Add 81/2 and 9/24

1^st number: 40 1/2, 2^nd number: 9/24

81/2 + 9/24 is 327/8.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 24 is 24

Next, find the equivalent fraction of both fractional numbers with denominator 24
For the 1st fraction, since 2 × 12 = 24,
81/2 = 81 × 12/2 × 12 = 972/24
Likewise, for the 2nd fraction, since 24 × 1 = 24,
9/24 = 9 × 1/24 × 1 = 9/24
Add the two like fractions:
972/24 + 9/24 = 972 + 9/24 = 981/24
981/24 simplified gives 327/8
So, 81/2 + 9/24 = 327/8
In mixed form: 407/8

MathStep (Works offline)

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