Add 18/12 and 40/81
1st number: 1 6/12, 2nd number: 40/81
18/12 + 40/81 is 323/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
18/12 = 18 × 27/12 × 27 = 486/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
40/81 = 40 × 4/81 × 4 = 160/324 - Add the two like fractions:
486/324 + 160/324 = 486 + 160/324 = 646/324 - 646/324 simplified gives 323/162
- So, 18/12 + 40/81 = 323/162
In mixed form: 1161/162
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