Add 45/12 and 5/63, Solve 3 9/12 + 5/63 as a fraction

Add 45/12 and 5/63

1^st number: 3 9/12, 2^nd number: 5/63

45/12 + 5/63 is 965/252.

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,
5/63 = 5 × 4/63 × 4 = 20/252
Add the two like fractions:
945/252 + 20/252 = 945 + 20/252 = 965/252
So, 45/12 + 5/63 = 965/252
In mixed form: 3209/252

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