Add 60/21 and 60/9, Solve 2 18/21 + 6 6/9 as a fraction

Add 60/21 and 60/9

1^st number: 2 18/21, 2^nd number: 6 6/9

60/21 + 60/9 is 200/21.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 21 × 3 = 63,
60/21 = 60 × 3/21 × 3 = 180/63
Likewise, for the 2nd fraction, since 9 × 7 = 63,
60/9 = 60 × 7/9 × 7 = 420/63
Add the two like fractions:
180/63 + 420/63 = 180 + 420/63 = 600/63
600/63 simplified gives 200/21
So, 60/21 + 60/9 = 200/21
In mixed form: 911/21

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