Add 45/12 and 6/63, Solve 3 9/12 + 6/63 as a fraction

Add 45/12 and 6/63

1^st number: 3 9/12, 2^nd number: 6/63

45/12 + 6/63 is 323/84.

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,
45/12 = 45 × 21/12 × 21 = 945/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
6/63 = 6 × 4/63 × 4 = 24/252
Add the two like fractions:
945/252 + 24/252 = 945 + 24/252 = 969/252
969/252 simplified gives 323/84
So, 45/12 + 6/63 = 323/84
In mixed form: 371/84

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