Add 21/6 and 63/5, Solve 3 3/6 + 12 3/5 as a fraction

Add 21/6 and 63/5

1^st number: 3 3/6, 2^nd number: 12 3/5

21/6 + 63/5 is 161/10.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 5 is 30

Next, find the equivalent fraction of both fractional numbers with denominator 30
For the 1st fraction, since 6 × 5 = 30,
21/6 = 21 × 5/6 × 5 = 105/30
Likewise, for the 2nd fraction, since 5 × 6 = 30,
63/5 = 63 × 6/5 × 6 = 378/30
Add the two like fractions:
105/30 + 378/30 = 105 + 378/30 = 483/30
483/30 simplified gives 161/10
So, 21/6 + 63/5 = 161/10
In mixed form: 161/10

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