Add 40/42 and 10/5, Solve 40/42 + 2 0/5 as a fraction

Add 40/42 and 10/5

1^st number: 40/42, 2^nd number: 2 0/5

40/42 + 10/5 is 62/21.

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

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
40/42 = 40 × 5/42 × 5 = 200/210
Likewise, for the 2nd fraction, since 5 × 42 = 210,
10/5 = 10 × 42/5 × 42 = 420/210
Add the two like fractions:
200/210 + 420/210 = 200 + 420/210 = 620/210
620/210 simplified gives 62/21
So, 40/42 + 10/5 = 62/21
In mixed form: 220/21

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