Add 6/84 and 84/63, Solve 6/84 + 1 21/63 as a fraction

Add 6/84 and 84/63

1^st number: 6/84, 2^nd number: 1 21/63

6/84 + 84/63 is 59/42.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 63 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 84 × 3 = 252,
6/84 = 6 × 3/84 × 3 = 18/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
84/63 = 84 × 4/63 × 4 = 336/252
Add the two like fractions:
18/252 + 336/252 = 18 + 336/252 = 354/252
354/252 simplified gives 59/42
So, 6/84 + 84/63 = 59/42
In mixed form: 117/42

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