Add 4/12 and 84/63, Solve 4/12 + 1 21/63 as a fraction

Add 4/12 and 84/63

1^st number: 4/12, 2^nd number: 1 21/63

4/12 + 84/63 is 5/3.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 12 × 21 = 252,
4/12 = 4 × 21/12 × 21 = 84/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
84/63 = 84 × 4/63 × 4 = 336/252
Add the two like fractions:
84/252 + 336/252 = 84 + 336/252 = 420/252
420/252 simplified gives 5/3
So, 4/12 + 84/63 = 5/3
In mixed form: 12/3

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