Add 30/36 and 70/81
30/36 + 70/81 is 275/162.
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,
30/36 = 30 × 9/36 × 9 = 270/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
70/81 = 70 × 4/81 × 4 = 280/324 - Add the two like fractions:
270/324 + 280/324 = 270 + 280/324 = 550/324 - 550/324 simplified gives 275/162
- So, 30/36 + 70/81 = 275/162
In mixed form: 1113/162
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