Add 84/21 and 45/6, Solve 4 0/21 + 7 3/6 as a fraction

Add 84/21 and 45/6

1^st number: 4 0/21, 2^nd number: 7 3/6

84/21 + 45/6 is 23/2.

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,
84/21 = 84 × 2/21 × 2 = 168/42
Likewise, for the 2nd fraction, since 6 × 7 = 42,
45/6 = 45 × 7/6 × 7 = 315/42
Add the two like fractions:
168/42 + 315/42 = 168 + 315/42 = 483/42
483/42 simplified gives 23/2
So, 84/21 + 45/6 = 23/2
In mixed form: 111/2

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