Add 7/12 and 40/42, Solve 7/12 + 40/42 as a fraction

Add 7/12 and 40/42

7/12 + 40/42 is 43/28.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
7/12 = 7 × 7/12 × 7 = 49/84
Likewise, for the 2nd fraction, since 42 × 2 = 84,
40/42 = 40 × 2/42 × 2 = 80/84
Add the two like fractions:
49/84 + 80/84 = 49 + 80/84 = 129/84
129/84 simplified gives 43/28
So, 7/12 + 40/42 = 43/28
In mixed form: 115/28

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