Add 42/12 and 45/14, Solve 3 6/12 + 3 3/14 as a fraction

Add 42/12 and 45/14

1^st number: 3 6/12, 2^nd number: 3 3/14

42/12 + 45/14 is 47/7.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 14 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
42/12 = 42 × 7/12 × 7 = 294/84
Likewise, for the 2nd fraction, since 14 × 6 = 84,
45/14 = 45 × 6/14 × 6 = 270/84
Add the two like fractions:
294/84 + 270/84 = 294 + 270/84 = 564/84
564/84 simplified gives 47/7
So, 42/12 + 45/14 = 47/7
In mixed form: 65/7

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