Add 10/30 and 81/12, Solve 10/30 + 6 9/12 as a fraction

Add 10/30 and 81/12

1^st number: 10/30, 2^nd number: 6 9/12

10/30 + 81/12 is 85/12.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 30 × 2 = 60,
10/30 = 10 × 2/30 × 2 = 20/60
Likewise, for the 2nd fraction, since 12 × 5 = 60,
81/12 = 81 × 5/12 × 5 = 405/60
Add the two like fractions:
20/60 + 405/60 = 20 + 405/60 = 425/60
425/60 simplified gives 85/12
So, 10/30 + 81/12 = 85/12
In mixed form: 71/12

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