Add 12/42 and 49/9, Solve 12/42 + 5 4/9 as a fraction

Add 12/42 and 49/9

1^st number: 12/42, 2^nd number: 5 4/9

12/42 + 49/9 is 361/63.

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,
12/42 = 12 × 3/42 × 3 = 36/126
Likewise, for the 2nd fraction, since 9 × 14 = 126,
49/9 = 49 × 14/9 × 14 = 686/126
Add the two like fractions:
36/126 + 686/126 = 36 + 686/126 = 722/126
722/126 simplified gives 361/63
So, 12/42 + 49/9 = 361/63
In mixed form: 546/63

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