Add 84/63 and 60/12, Solve 1 21/63 + 5 0/12 as a fraction

Add 84/63 and 60/12

1^st number: 1 21/63, 2^nd number: 5 0/12

84/63 + 60/12 is 19/3.

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

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 63 × 4 = 252,
84/63 = 84 × 4/63 × 4 = 336/252
Likewise, for the 2nd fraction, since 12 × 21 = 252,
60/12 = 60 × 21/12 × 21 = 1260/252
Add the two like fractions:
336/252 + 1260/252 = 336 + 1260/252 = 1596/252
1596/252 simplified gives 19/3
So, 84/63 + 60/12 = 19/3
In mixed form: 61/3

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