Add 12/5 and 80/42, Solve 2 2/5 + 1 38/42 as a fraction

Add 12/5 and 80/42

1^st number: 2 2/5, 2^nd number: 1 38/42

12/5 + 80/42 is 452/105.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 5 × 42 = 210,
12/5 = 12 × 42/5 × 42 = 504/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
80/42 = 80 × 5/42 × 5 = 400/210
Add the two like fractions:
504/210 + 400/210 = 504 + 400/210 = 904/210
904/210 simplified gives 452/105
So, 12/5 + 80/42 = 452/105
In mixed form: 432/105

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