Add 12/42 and 15/8, Solve 12/42 + 1 7/8 as a fraction

Add 12/42 and 15/8

1^st number: 12/42, 2^nd number: 1 7/8

12/42 + 15/8 is 121/56.

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,
12/42 = 12 × 4/42 × 4 = 48/168
Likewise, for the 2nd fraction, since 8 × 21 = 168,
15/8 = 15 × 21/8 × 21 = 315/168
Add the two like fractions:
48/168 + 315/168 = 48 + 315/168 = 363/168
363/168 simplified gives 121/56
So, 12/42 + 15/8 = 121/56
In mixed form: 29/56

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