Add 20/8 and 3/42, Solve 2 4/8 + 3/42 as a fraction

Add 20/8 and 3/42

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

20/8 + 3/42 is 18/7.

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

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 8 × 21 = 168,
20/8 = 20 × 21/8 × 21 = 420/168
Likewise, for the 2nd fraction, since 42 × 4 = 168,
3/42 = 3 × 4/42 × 4 = 12/168
Add the two like fractions:
420/168 + 12/168 = 420 + 12/168 = 432/168
432/168 simplified gives 18/7
So, 20/8 + 3/42 = 18/7
In mixed form: 24/7

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