Add 1/42 and 28/8, Solve 1/42 + 3 4/8 as a fraction

Add 1/42 and 28/8

1^st number: 1/42, 2^nd number: 3 4/8

1/42 + 28/8 is 74/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 42 × 4 = 168,
1/42 = 1 × 4/42 × 4 = 4/168
Likewise, for the 2nd fraction, since 8 × 21 = 168,
28/8 = 28 × 21/8 × 21 = 588/168
Add the two like fractions:
4/168 + 588/168 = 4 + 588/168 = 592/168
592/168 simplified gives 74/21
So, 1/42 + 28/8 = 74/21
In mixed form: 311/21

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