Add 18/3 and 70/21, Solve 6 0/3 + 3 7/21 as a fraction

Add 18/3 and 70/21

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

18/3 + 70/21 is 28/3.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21

Next, find the equivalent fraction of both fractional numbers with denominator 21
For the 1st fraction, since 3 × 7 = 21,
18/3 = 18 × 7/3 × 7 = 126/21
Likewise, for the 2nd fraction, since 21 × 1 = 21,
70/21 = 70 × 1/21 × 1 = 70/21
Add the two like fractions:
126/21 + 70/21 = 126 + 70/21 = 196/21
196/21 simplified gives 28/3
So, 18/3 + 70/21 = 28/3
In mixed form: 91/3

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