Add 21/2 and 12/56, Solve 10 1/2 + 12/56 as a fraction

Add 21/2 and 12/56

1^st number: 10 1/2, 2^nd number: 12/56

21/2 + 12/56 is 75/7.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 56 is 56

Next, find the equivalent fraction of both fractional numbers with denominator 56
For the 1st fraction, since 2 × 28 = 56,
21/2 = 21 × 28/2 × 28 = 588/56
Likewise, for the 2nd fraction, since 56 × 1 = 56,
12/56 = 12 × 1/56 × 1 = 12/56
Add the two like fractions:
588/56 + 12/56 = 588 + 12/56 = 600/56
600/56 simplified gives 75/7
So, 21/2 + 12/56 = 75/7
In mixed form: 105/7

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