Add 3/12 and 27/25, Solve 3/12 + 1 2/25 as a fraction

Add 3/12 and 27/25

1^st number: 3/12, 2^nd number: 1 2/25

3/12 + 27/25 is 133/100.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 12 × 25 = 300,
3/12 = 3 × 25/12 × 25 = 75/300
Likewise, for the 2nd fraction, since 25 × 12 = 300,
27/25 = 27 × 12/25 × 12 = 324/300
Add the two like fractions:
75/300 + 324/300 = 75 + 324/300 = 399/300
399/300 simplified gives 133/100
So, 3/12 + 27/25 = 133/100
In mixed form: 133/100

MathStep (Works offline)

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