The length of the rectangle is 2 as much as 3/20 meters, and the width is 9/20 meters less.

The length of the rectangle is 2 as much as 3/20 meters, and the width is 9/20 meters less. Find the perimeter of the rectangle.

1) Determine the width of the rectangle, provided that it is 9/20 m less than its length, equal to 2 3/20 m:

2 3/20 – 9/20. We represent the reduced as an improper fraction:

43/20 – 9/20 = 34/20. Reduce the fraction: 17/10 or 1 7/10 m.

2) The perimeter of the rectangle is calculated by the formula:

P = 2a + 2b = 2 * 43/20 + 2 * 17/10 = 43/10 + 17/5 = 77/10 m.

Take out the whole value, it turns out that the perimeter of the rectangle is 7 7/10 m or 7.7 m.