Add 20/42 and 63/27, Solve 20/42 + 2 9/27 as a fraction

Add 20/42 and 63/27

1^st number: 20/42, 2^nd number: 2 9/27

20/42 + 63/27 is 59/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 42 × 9 = 378,
20/42 = 20 × 9/42 × 9 = 180/378
Likewise, for the 2nd fraction, since 27 × 14 = 378,
63/27 = 63 × 14/27 × 14 = 882/378
Add the two like fractions:
180/378 + 882/378 = 180 + 882/378 = 1062/378
1062/378 simplified gives 59/21
So, 20/42 + 63/27 = 59/21
In mixed form: 217/21

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