Add 12/16 and 42/40, Solve 12/16 + 1 2/40 as a fraction

Add 12/16 and 42/40

1^st number: 12/16, 2^nd number: 1 2/40

12/16 + 42/40 is 9/5.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 40 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 16 × 5 = 80,
12/16 = 12 × 5/16 × 5 = 60/80
Likewise, for the 2nd fraction, since 40 × 2 = 80,
42/40 = 42 × 2/40 × 2 = 84/80
Add the two like fractions:
60/80 + 84/80 = 60 + 84/80 = 144/80
144/80 simplified gives 9/5
So, 12/16 + 42/40 = 9/5
In mixed form: 14/5

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