Add 20/42 and 54/9, Solve 20/42 + 6 0/9 as a fraction

Add 20/42 and 54/9

1^st number: 20/42, 2^nd number: 6 0/9

20/42 + 54/9 is 136/21.

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,
54/9 = 54 × 14/9 × 14 = 756/126
Add the two like fractions:
60/126 + 756/126 = 60 + 756/126 = 816/126
816/126 simplified gives 136/21
So, 20/42 + 54/9 = 136/21
In mixed form: 610/21

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