Add 21/36 and 42/14, Solve 21/36 + 3 0/14 as a fraction

Add 21/36 and 42/14

1^st number: 21/36, 2^nd number: 3 0/14

21/36 + 42/14 is 43/12.

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,
21/36 = 21 × 7/36 × 7 = 147/252
Likewise, for the 2nd fraction, since 14 × 18 = 252,
42/14 = 42 × 18/14 × 18 = 756/252
Add the two like fractions:
147/252 + 756/252 = 147 + 756/252 = 903/252
903/252 simplified gives 43/12
So, 21/36 + 42/14 = 43/12
In mixed form: 37/12

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