Add 12/5 and 21/63, Solve 2 2/5 + 21/63 as a fraction

Add 12/5 and 21/63

1^st number: 2 2/5, 2^nd number: 21/63

12/5 + 21/63 is 41/15.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 5 × 63 = 315,
12/5 = 12 × 63/5 × 63 = 756/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
21/63 = 21 × 5/63 × 5 = 105/315
Add the two like fractions:
756/315 + 105/315 = 756 + 105/315 = 861/315
861/315 simplified gives 41/15
So, 12/5 + 21/63 = 41/15
In mixed form: 211/15

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