Add 18/36 and 7/81
18/36 + 7/81 is 95/162.
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,
18/36 = 18 × 9/36 × 9 = 162/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
7/81 = 7 × 4/81 × 4 = 28/324 - Add the two like fractions:
162/324 + 28/324 = 162 + 28/324 = 190/324 - 190/324 simplified gives 95/162
- So, 18/36 + 7/81 = 95/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/36+14/81 18/72+7/81 54/36+7/81 18/36+21/81 90/36+7/81 18/36+35/81 18/36+49/81