Add 84/9 and 18/42, Solve 9 3/9 + 18/42 as a fraction

Add 84/9 and 18/42

1^st number: 9 3/9, 2^nd number: 18/42

84/9 + 18/42 is 205/21.

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

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 9 × 14 = 126,
84/9 = 84 × 14/9 × 14 = 1176/126
Likewise, for the 2nd fraction, since 42 × 3 = 126,
18/42 = 18 × 3/42 × 3 = 54/126
Add the two like fractions:
1176/126 + 54/126 = 1176 + 54/126 = 1230/126
1230/126 simplified gives 205/21
So, 84/9 + 18/42 = 205/21
In mixed form: 916/21

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