Add 84/9 and 15/12, Solve 9 3/9 + 1 3/12 as a fraction

Add 84/9 and 15/12

1^st number: 9 3/9, 2^nd number: 1 3/12

84/9 + 15/12 is 127/12.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 12 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 9 × 4 = 36,
84/9 = 84 × 4/9 × 4 = 336/36
Likewise, for the 2nd fraction, since 12 × 3 = 36,
15/12 = 15 × 3/12 × 3 = 45/36
Add the two like fractions:
336/36 + 45/36 = 336 + 45/36 = 381/36
381/36 simplified gives 127/12
So, 84/9 + 15/12 = 127/12
In mixed form: 107/12

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