Add 18/36 and 63/81
18/36 + 63/81 is 23/18.
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,
63/81 = 63 × 4/81 × 4 = 252/324 - Add the two like fractions:
162/324 + 252/324 = 162 + 252/324 = 414/324 - 414/324 simplified gives 23/18
- So, 18/36 + 63/81 = 23/18
In mixed form: 15/18
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