Add 42/6 and 21/12, Solve 7 0/6 + 1 9/12 as a fraction

Add 42/6 and 21/12

1^st number: 7 0/6, 2^nd number: 1 9/12

42/6 + 21/12 is 35/4.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 12 is 12

Next, find the equivalent fraction of both fractional numbers with denominator 12
For the 1st fraction, since 6 × 2 = 12,
42/6 = 42 × 2/6 × 2 = 84/12
Likewise, for the 2nd fraction, since 12 × 1 = 12,
21/12 = 21 × 1/12 × 1 = 21/12
Add the two like fractions:
84/12 + 21/12 = 84 + 21/12 = 105/12
105/12 simplified gives 35/4
So, 42/6 + 21/12 = 35/4
In mixed form: 83/4

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