Add 21/36 and 63/12, Solve 21/36 + 5 3/12 as a fraction

Add 21/36 and 63/12

1^st number: 21/36, 2^nd number: 5 3/12

21/36 + 63/12 is 35/6.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 12 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 36 × 1 = 36,
21/36 = 21 × 1/36 × 1 = 21/36
Likewise, for the 2nd fraction, since 12 × 3 = 36,
63/12 = 63 × 3/12 × 3 = 189/36
Add the two like fractions:
21/36 + 189/36 = 21 + 189/36 = 210/36
210/36 simplified gives 35/6
So, 21/36 + 63/12 = 35/6
In mixed form: 55/6

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