Add 81/18 and 27/36, Solve 4 9/18 + 27/36 as a fraction

Add 81/18 and 27/36

1^st number: 4 9/18, 2^nd number: 27/36

81/18 + 27/36 is 21/4.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 18 × 2 = 36,
81/18 = 81 × 2/18 × 2 = 162/36
Likewise, for the 2nd fraction, since 36 × 1 = 36,
27/36 = 27 × 1/36 × 1 = 27/36
Add the two like fractions:
162/36 + 27/36 = 162 + 27/36 = 189/36
189/36 simplified gives 21/4
So, 81/18 + 27/36 = 21/4
In mixed form: 51/4

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