Add 3/42 and 40/7, Solve 3/42 + 5 5/7 as a fraction

Add 3/42 and 40/7

1^st number: 3/42, 2^nd number: 5 5/7

3/42 + 40/7 is 81/14.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 42 × 1 = 42,
3/42 = 3 × 1/42 × 1 = 3/42
Likewise, for the 2nd fraction, since 7 × 6 = 42,
40/7 = 40 × 6/7 × 6 = 240/42
Add the two like fractions:
3/42 + 240/42 = 3 + 240/42 = 243/42
243/42 simplified gives 81/14
So, 3/42 + 40/7 = 81/14
In mixed form: 511/14

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