Add 27/4 and 15/18, Solve 6 3/4 + 15/18 as a fraction

Add 27/4 and 15/18

1^st number: 6 3/4, 2^nd number: 15/18

27/4 + 15/18 is 91/12.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 4 × 9 = 36,
27/4 = 27 × 9/4 × 9 = 243/36
Likewise, for the 2nd fraction, since 18 × 2 = 36,
15/18 = 15 × 2/18 × 2 = 30/36
Add the two like fractions:
243/36 + 30/36 = 243 + 30/36 = 273/36
273/36 simplified gives 91/12
So, 27/4 + 15/18 = 91/12
In mixed form: 77/12

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