Add 30/36 and 21/81
30/36 + 21/81 is 59/54.
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,
30/36 = 30 × 9/36 × 9 = 270/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
21/81 = 21 × 4/81 × 4 = 84/324 - Add the two like fractions:
270/324 + 84/324 = 270 + 84/324 = 354/324 - 354/324 simplified gives 59/54
- So, 30/36 + 21/81 = 59/54
In mixed form: 15/54
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