Add 20/21 and 18/6, Solve 20/21 + 3 0/6 as a fraction

Add 20/21 and 18/6

1^st number: 20/21, 2^nd number: 3 0/6

20/21 + 18/6 is 83/21.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 21 × 2 = 42,
20/21 = 20 × 2/21 × 2 = 40/42
Likewise, for the 2nd fraction, since 6 × 7 = 42,
18/6 = 18 × 7/6 × 7 = 126/42
Add the two like fractions:
40/42 + 126/42 = 40 + 126/42 = 166/42
166/42 simplified gives 83/21
So, 20/21 + 18/6 = 83/21
In mixed form: 320/21

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