Add 36/81 and 30/15
1st number: 36/81, 2nd number: 2 0/15
36/81 + 30/15 is 22/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 15 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
36/81 = 36 × 5/81 × 5 = 180/405 - Likewise, for the 2nd fraction, since 15 × 27 = 405,
30/15 = 30 × 27/15 × 27 = 810/405 - Add the two like fractions:
180/405 + 810/405 = 180 + 810/405 = 990/405 - 990/405 simplified gives 22/9
- So, 36/81 + 30/15 = 22/9
In mixed form: 24/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/81+30/15 36/81+60/15 36/81+90/15 36/81+30/45 36/81+30/75