Question

Use a different integer 1, 2, 3, or 4 for each of a, b, c,
and d in the multiplication sentence a/b x c/d to make
the greatest possible product.

Where would I put the four integers 5, 6, 7, and 8 to make the greatest possible product?
But then how would I put 2, 5, 8, and 9?

I need a description of the pattern in the placement of the integers that generates the greatest
product.

Answer 1

PUt the greatest integers in the numerators, and the lessor integers in the denominators.

7x8/6x5 or 7/6 * 8/5

Answer 2

5my square