Add 81/36 and 21/14, Solve 2 9/36 + 1 7/14 as a fraction

Add 81/36 and 21/14

1^st number: 2 9/36, 2^nd number: 1 7/14

81/36 + 21/14 is 15/4.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 14 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 36 × 7 = 252,
81/36 = 81 × 7/36 × 7 = 567/252
Likewise, for the 2nd fraction, since 14 × 18 = 252,
21/14 = 21 × 18/14 × 18 = 378/252
Add the two like fractions:
567/252 + 378/252 = 567 + 378/252 = 945/252
945/252 simplified gives 15/4
So, 81/36 + 21/14 = 15/4
In mixed form: 33/4

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