Add 20/60 and 84/42, Solve 20/60 + 2 0/42 as a fraction

Add 20/60 and 84/42

1^st number: 20/60, 2^nd number: 2 0/42

20/60 + 84/42 is 7/3.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420
Likewise, for the 2nd fraction, since 42 × 10 = 420,
84/42 = 84 × 10/42 × 10 = 840/420
Add the two like fractions:
140/420 + 840/420 = 140 + 840/420 = 980/420
980/420 simplified gives 7/3
So, 20/60 + 84/42 = 7/3
In mixed form: 21/3

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