Add 80/12 and 30/54, Solve 6 8/12 + 30/54 as a fraction

Add 80/12 and 30/54

1^st number: 6 8/12, 2^nd number: 30/54

80/12 + 30/54 is 65/9.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
80/12 = 80 × 9/12 × 9 = 720/108
Likewise, for the 2nd fraction, since 54 × 2 = 108,
30/54 = 30 × 2/54 × 2 = 60/108
Add the two like fractions:
720/108 + 60/108 = 720 + 60/108 = 780/108
780/108 simplified gives 65/9
So, 80/12 + 30/54 = 65/9
In mixed form: 72/9

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