Add 42/2 and 75/12, Solve 21 0/2 + 6 3/12 as a fraction

Add 42/2 and 75/12

1^st number: 21 0/2, 2^nd number: 6 3/12

42/2 + 75/12 is 109/4.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 12 is 12

Next, find the equivalent fraction of both fractional numbers with denominator 12
For the 1st fraction, since 2 × 6 = 12,
42/2 = 42 × 6/2 × 6 = 252/12
Likewise, for the 2nd fraction, since 12 × 1 = 12,
75/12 = 75 × 1/12 × 1 = 75/12
Add the two like fractions:
252/12 + 75/12 = 252 + 75/12 = 327/12
327/12 simplified gives 109/4
So, 42/2 + 75/12 = 109/4
In mixed form: 271/4

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