Add 63/16 and 28/63, Solve 3 15/16 + 28/63 as a fraction

Add 63/16 and 28/63

1^st number: 3 15/16, 2^nd number: 28/63

63/16 + 28/63 is 631/144.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 63 is 1008

Next, find the equivalent fraction of both fractional numbers with denominator 1008
For the 1st fraction, since 16 × 63 = 1008,
63/16 = 63 × 63/16 × 63 = 3969/1008
Likewise, for the 2nd fraction, since 63 × 16 = 1008,
28/63 = 28 × 16/63 × 16 = 448/1008
Add the two like fractions:
3969/1008 + 448/1008 = 3969 + 448/1008 = 4417/1008
4417/1008 simplified gives 631/144
So, 63/16 + 28/63 = 631/144
In mixed form: 455/144

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