Add 18/42 and 40/8, Solve 18/42 + 5 0/8 as a fraction

Add 18/42 and 40/8

1^st number: 18/42, 2^nd number: 5 0/8

18/42 + 40/8 is 38/7.

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,
18/42 = 18 × 4/42 × 4 = 72/168
Likewise, for the 2nd fraction, since 8 × 21 = 168,
40/8 = 40 × 21/8 × 21 = 840/168
Add the two like fractions:
72/168 + 840/168 = 72 + 840/168 = 912/168
912/168 simplified gives 38/7
So, 18/42 + 40/8 = 38/7
In mixed form: 53/7

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