Add 20/12 and 80/9, Solve 1 8/12 + 8 8/9 as a fraction

Add 20/12 and 80/9

1^st number: 1 8/12, 2^nd number: 8 8/9

20/12 + 80/9 is 95/9.

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

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 12 × 3 = 36,
20/12 = 20 × 3/12 × 3 = 60/36
Likewise, for the 2nd fraction, since 9 × 4 = 36,
80/9 = 80 × 4/9 × 4 = 320/36
Add the two like fractions:
60/36 + 320/36 = 60 + 320/36 = 380/36
380/36 simplified gives 95/9
So, 20/12 + 80/9 = 95/9
In mixed form: 105/9

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