Add 45/12 and 8/63, Solve 3 9/12 + 8/63 as a fraction

Add 45/12 and 8/63

1^st number: 3 9/12, 2^nd number: 8/63

45/12 + 8/63 is 977/252.

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,
8/63 = 8 × 4/63 × 4 = 32/252
Add the two like fractions:
945/252 + 32/252 = 945 + 32/252 = 977/252
So, 45/12 + 8/63 = 977/252
In mixed form: 3221/252

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