Add 35/81 and 9/12, Solve 35/81 + 9/12 as a fraction

Add 35/81 and 9/12

35/81 + 9/12 is 383/324.

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 12 is 324

Next, find the equivalent fraction of both fractional numbers with denominator 324
For the 1st fraction, since 81 × 4 = 324,
35/81 = 35 × 4/81 × 4 = 140/324
Likewise, for the 2nd fraction, since 12 × 27 = 324,
9/12 = 9 × 27/12 × 27 = 243/324
Add the two like fractions:
140/324 + 243/324 = 140 + 243/324 = 383/324
So, 35/81 + 9/12 = 383/324
In mixed form: 159/324

MathStep (Works offline)

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