The correct answer is 56/5
This is because when you divide by a fraction, it is the same as multiplying by that same fraction flipped. So we start with:
7 ÷ 5/8
Now we can flip it and change it to multiply.
7 * 8/5
Then when we multiply, we multiply the 7 times the 8 since they are our two numerators. You never need to multiply the denominator by either unless there is another denominator.
56/5