Add 27/15 and 84/63, Solve 1 12/15 + 1 21/63 as a fraction

Add 27/15 and 84/63

1^st number: 1 12/15, 2^nd number: 1 21/63

27/15 + 84/63 is 47/15.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 15 × 21 = 315,
27/15 = 27 × 21/15 × 21 = 567/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
84/63 = 84 × 5/63 × 5 = 420/315
Add the two like fractions:
567/315 + 420/315 = 567 + 420/315 = 987/315
987/315 simplified gives 47/15
So, 27/15 + 84/63 = 47/15
In mixed form: 32/15

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