Add 18/12 and 5/81, Solve 1 6/12 + 5/81 as a fraction

Add 18/12 and 5/81

1^st number: 1 6/12, 2^nd number: 5/81

18/12 + 5/81 is 253/162.

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,
5/81 = 5 × 4/81 × 4 = 20/324
Add the two like fractions:
486/324 + 20/324 = 486 + 20/324 = 506/324
506/324 simplified gives 253/162
So, 18/12 + 5/81 = 253/162
In mixed form: 191/162

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