The expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. If the length is Fraction 2 over 7 unit and the width is Fraction 3 over 7 unit, what is the perimeter of the rectangle in units?
Fraction 5 over 7 unit
1 unit
1Fraction 3 over 7 units
2Fraction 5 over 7 units