Add 25/2 and 30/75, Solve 12 1/2 + 30/75 as a fraction

Add 25/2 and 30/75

1^st number: 12 1/2, 2^nd number: 30/75

25/2 + 30/75 is 129/10.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 75 is 150

Next, find the equivalent fraction of both fractional numbers with denominator 150
For the 1st fraction, since 2 × 75 = 150,
25/2 = 25 × 75/2 × 75 = 1875/150
Likewise, for the 2nd fraction, since 75 × 2 = 150,
30/75 = 30 × 2/75 × 2 = 60/150
Add the two like fractions:
1875/150 + 60/150 = 1875 + 60/150 = 1935/150
1935/150 simplified gives 129/10
So, 25/2 + 30/75 = 129/10
In mixed form: 129/10

MathStep (Works offline)

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