Add 7/36 and 28/81
7/36 + 28/81 is 175/324.
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,
7/36 = 7 × 9/36 × 9 = 63/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
28/81 = 28 × 4/81 × 4 = 112/324 - Add the two like fractions:
63/324 + 112/324 = 63 + 112/324 = 175/324 - So, 7/36 + 28/81 = 175/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/36+28/81 7/36+56/81 7/72+28/81 21/36+28/81 7/36+84/81 35/36+28/81 49/36+28/81