Add 81/12 and 45/8, Solve 6 9/12 + 5 5/8 as a fraction

Add 81/12 and 45/8

1^st number: 6 9/12, 2^nd number: 5 5/8

81/12 + 45/8 is 99/8.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24

Next, find the equivalent fraction of both fractional numbers with denominator 24
For the 1st fraction, since 12 × 2 = 24,
81/12 = 81 × 2/12 × 2 = 162/24
Likewise, for the 2nd fraction, since 8 × 3 = 24,
45/8 = 45 × 3/8 × 3 = 135/24
Add the two like fractions:
162/24 + 135/24 = 162 + 135/24 = 297/24
297/24 simplified gives 99/8
So, 81/12 + 45/8 = 99/8
In mixed form: 123/8

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