How do you add these?

4 11/3 + 3 4/3+

Add the whole numbers 4+3=7

The your mixed numbers add the 11+4 since there numerators and leave the 3(denominator) the same it will give you 15/3 simplify it to 5/1

Since it’s whole then you add 5 and 7 that gives you 12

Answer = 12

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