Add 20/42 and 21/9, Solve 20/42 + 2 3/9 as a fraction

Add 20/42 and 21/9

1^st number: 20/42, 2^nd number: 2 3/9

20/42 + 21/9 is 59/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 42 × 3 = 126,
20/42 = 20 × 3/42 × 3 = 60/126
Likewise, for the 2nd fraction, since 9 × 14 = 126,
21/9 = 21 × 14/9 × 14 = 294/126
Add the two like fractions:
60/126 + 294/126 = 60 + 294/126 = 354/126
354/126 simplified gives 59/21
So, 20/42 + 21/9 = 59/21
In mixed form: 217/21

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