Add 28/36 and 36/81
28/36 + 36/81 is 11/9.
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,
28/36 = 28 × 9/36 × 9 = 252/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
36/81 = 36 × 4/81 × 4 = 144/324 - Add the two like fractions:
252/324 + 144/324 = 252 + 144/324 = 396/324 - 396/324 simplified gives 11/9
- So, 28/36 + 36/81 = 11/9
In mixed form: 12/9
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