Add 18/12 and 42/56, Solve 1 6/12 + 42/56 as a fraction

Add 18/12 and 42/56

1^st number: 1 6/12, 2^nd number: 42/56

18/12 + 42/56 is 9/4.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 12 × 14 = 168,
18/12 = 18 × 14/12 × 14 = 252/168
Likewise, for the 2nd fraction, since 56 × 3 = 168,
42/56 = 42 × 3/56 × 3 = 126/168
Add the two like fractions:
252/168 + 126/168 = 252 + 126/168 = 378/168
378/168 simplified gives 9/4
So, 18/12 + 42/56 = 9/4
In mixed form: 21/4

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