Add 9/42 and 12/8, Solve 9/42 + 1 4/8 as a fraction

Add 9/42 and 12/8

1^st number: 9/42, 2^nd number: 1 4/8

9/42 + 12/8 is 12/7.

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,
9/42 = 9 × 4/42 × 4 = 36/168
Likewise, for the 2nd fraction, since 8 × 21 = 168,
12/8 = 12 × 21/8 × 21 = 252/168
Add the two like fractions:
36/168 + 252/168 = 36 + 252/168 = 288/168
288/168 simplified gives 12/7
So, 9/42 + 12/8 = 12/7
In mixed form: 15/7

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