Add 40/12 and 42/6, Solve 3 4/12 + 7 0/6 as a fraction

Add 40/12 and 42/6

1^st number: 3 4/12, 2^nd number: 7 0/6

40/12 + 42/6 is 31/3.

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

Next, find the equivalent fraction of both fractional numbers with denominator 12
For the 1st fraction, since 12 × 1 = 12,
40/12 = 40 × 1/12 × 1 = 40/12
Likewise, for the 2nd fraction, since 6 × 2 = 12,
42/6 = 42 × 2/6 × 2 = 84/12
Add the two like fractions:
40/12 + 84/12 = 40 + 84/12 = 124/12
124/12 simplified gives 31/3
So, 40/12 + 42/6 = 31/3
In mixed form: 101/3

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