Verified Answer :

(84÷7)+(9÷3) The parentheses are not necessary but I just put them.
I think that's what you meant. If you meant the other thing this would be the equation: (84÷7+9)÷3. Here the parentheses are nessasary

Answer: Our expression is \(\dfrac{84}{7}-\dfrac{9}{3}=15\)

Step-by-step explanation:

Since we have given that

84 divided into sevenths means

\(\dfrac{84}{7}\\\\=12\)

9 divided into thirds means

\(\dfrac{9}{3}\\\\=3\)

Now, 84 divided into sevenths added to 9 divided into thirds means

\(12+3\\\\ =15\)

Hence, our expression is \(\dfrac{84}{7}-\dfrac{9}{3}=15\)

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