Add 42/36 and 25/12, Solve 1 6/36 + 2 1/12 as a fraction

Add 42/36 and 25/12

1^st number: 1 6/36, 2^nd number: 2 1/12

42/36 + 25/12 is 13/4.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 12 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 36 × 1 = 36,
42/36 = 42 × 1/36 × 1 = 42/36
Likewise, for the 2nd fraction, since 12 × 3 = 36,
25/12 = 25 × 3/12 × 3 = 75/36
Add the two like fractions:
42/36 + 75/36 = 42 + 75/36 = 117/36
117/36 simplified gives 13/4
So, 42/36 + 25/12 = 13/4
In mixed form: 31/4

MathStep (Works offline)

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