The width of the rectangle is 16 cm and is 4/5 of its length. Find the area of the rectangle.

The first step is to find the length, knowing that the length is 4/5 of the width, which is 16 centimeters. To do this, we must divide the number 16 by 4/5.

16: 4/5 = (16 * 5) / 4 = 80/4 = 20 cm.

To perform division, we multiply the whole part by the denominator 5, and then the result is divided by the numerator 4.

Let’s calculate what is the area of a rectangle whose length is 20 cm and width is 16 cm. Let’s multiply these values.

S = 20 * 16 = 320 cm².

Answer: 320 cm².