Add 6/36 and 20/81
6/36 + 20/81 is 67/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 36 × 9 = 324,
6/36 = 6 × 9/36 × 9 = 54/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
20/81 = 20 × 4/81 × 4 = 80/324 - Add the two like fractions:
54/324 + 80/324 = 54 + 80/324 = 134/324 - 134/324 simplified gives 67/162
- So, 6/36 + 20/81 = 67/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/36+20/81 6/36+40/81 6/72+20/81 18/36+20/81 6/36+60/81 30/36+20/81 42/36+20/81