A rectangular piece of paper is 75 cm in length and 60 cm in width. It should be cut into small square pieces of paper of equal area without remaining, and with the longest side Hurry!

A rectangular piece of paper is 75 cm in length and 60 cm in width. It should be cut into small square pieces of paper of equal area without remaining, and with the longest side Hurry!

The greatest common divisor of 75 and 60 is 15
So the side length of a square is 15 cm
It can cut 75x60 ÷ (15x15) = 5X4 = 20

The area of a rectangle is X & # 178; - Y & # 178;, and the area of a square with its long side as its side length is?
X²-Y²=(X+Y)(X-Y)
Because the longest side is the side length, the longest side is x + y
The area is
(x + y) & # 178; I don't think it's right, because y can also be negative, so x + y and X-Y don't know who grows, so the results are (x + y) & # 178; and (X-Y) & # 178; ah, why is there only one answer?

If there is only one answer
That is, X and y are all positive numbers by default
If it doesn't say what x and Y stand for, the answer should be two