Add 36/81 and 30/20
1st number: 36/81, 2nd number: 1 10/20
36/81 + 30/20 is 35/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 20 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
36/81 = 36 × 20/81 × 20 = 720/1620 - Likewise, for the 2nd fraction, since 20 × 81 = 1620,
30/20 = 30 × 81/20 × 81 = 2430/1620 - Add the two like fractions:
720/1620 + 2430/1620 = 720 + 2430/1620 = 3150/1620 - 3150/1620 simplified gives 35/18
- So, 36/81 + 30/20 = 35/18
In mixed form: 117/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/81+30/20 36/81+60/20 36/81+30/40 36/81+90/20 36/81+30/60