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

Add 12/9 and 3/84

1^st number: 1 3/9, 2^nd number: 3/84

12/9 + 3/84 is 115/84.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 9 × 28 = 252,
12/9 = 12 × 28/9 × 28 = 336/252
Likewise, for the 2nd fraction, since 84 × 3 = 252,
3/84 = 3 × 3/84 × 3 = 9/252
Add the two like fractions:
336/252 + 9/252 = 336 + 9/252 = 345/252
345/252 simplified gives 115/84
So, 12/9 + 3/84 = 115/84
In mixed form: 131/84

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