Add 9/12 and 36/35, Solve 9/12 + 1 1/35 as a fraction

Add 9/12 and 36/35

1^st number: 9/12, 2^nd number: 1 1/35

9/12 + 36/35 is 249/140.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
9/12 = 9 × 35/12 × 35 = 315/420
Likewise, for the 2nd fraction, since 35 × 12 = 420,
36/35 = 36 × 12/35 × 12 = 432/420
Add the two like fractions:
315/420 + 432/420 = 315 + 432/420 = 747/420
747/420 simplified gives 249/140
So, 9/12 + 36/35 = 249/140
In mixed form: 1109/140

MathStep (Works offline)

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