Add 75/12 and 21/63, Solve 6 3/12 + 21/63 as a fraction

Add 75/12 and 21/63

1^st number: 6 3/12, 2^nd number: 21/63

75/12 + 21/63 is 79/12.

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,
75/12 = 75 × 21/12 × 21 = 1575/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
21/63 = 21 × 4/63 × 4 = 84/252
Add the two like fractions:
1575/252 + 84/252 = 1575 + 84/252 = 1659/252
1659/252 simplified gives 79/12
So, 75/12 + 21/63 = 79/12
In mixed form: 67/12

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