Add 63/3 and 42/27, Solve 21 0/3 + 1 15/27 as a fraction

Add 63/3 and 42/27

1^st number: 21 0/3, 2^nd number: 1 15/27

63/3 + 42/27 is 203/9.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 27 is 27

Next, find the equivalent fraction of both fractional numbers with denominator 27
For the 1st fraction, since 3 × 9 = 27,
63/3 = 63 × 9/3 × 9 = 567/27
Likewise, for the 2nd fraction, since 27 × 1 = 27,
42/27 = 42 × 1/27 × 1 = 42/27
Add the two like fractions:
567/27 + 42/27 = 567 + 42/27 = 609/27
609/27 simplified gives 203/9
So, 63/3 + 42/27 = 203/9
In mixed form: 225/9

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