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5 3/4 + 3 1/6

Make the 3/4 and 1/6 have common denominators. The least common denominator is 12. Multiply 3/4 by 3 on both sides and 1/6 by 2 on both sides.

5 3/4 ⇒ 5 9/12
3 1/6 ⇒ 3 2/12

Now you can add them up.

5 9/12 + 3 2/12 = 8 11/12

The answer is 8 11/12.

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