Add 28/12 and 72/63, Solve 2 4/12 + 1 9/63 as a fraction

Add 28/12 and 72/63

1^st number: 2 4/12, 2^nd number: 1 9/63

28/12 + 72/63 is 73/21.

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,
28/12 = 28 × 21/12 × 21 = 588/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
72/63 = 72 × 4/63 × 4 = 288/252
Add the two like fractions:
588/252 + 288/252 = 588 + 288/252 = 876/252
876/252 simplified gives 73/21
So, 28/12 + 72/63 = 73/21
In mixed form: 310/21

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