Add 20/81 and 42/36
1st number: 20/81, 2nd number: 1 6/36
20/81 + 42/36 is 229/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 36 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
20/81 = 20 × 4/81 × 4 = 80/324 - Likewise, for the 2nd fraction, since 36 × 9 = 324,
42/36 = 42 × 9/36 × 9 = 378/324 - Add the two like fractions:
80/324 + 378/324 = 80 + 378/324 = 458/324 - 458/324 simplified gives 229/162
- So, 20/81 + 42/36 = 229/162
In mixed form: 167/162
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