Add 81/12 and 16/7, Solve 6 9/12 + 2 2/7 as a fraction

Add 81/12 and 16/7

1^st number: 6 9/12, 2^nd number: 2 2/7

81/12 + 16/7 is 253/28.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
81/12 = 81 × 7/12 × 7 = 567/84
Likewise, for the 2nd fraction, since 7 × 12 = 84,
16/7 = 16 × 12/7 × 12 = 192/84
Add the two like fractions:
567/84 + 192/84 = 567 + 192/84 = 759/84
759/84 simplified gives 253/28
So, 81/12 + 16/7 = 253/28
In mixed form: 91/28

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