The perimeter of a rectangle is the sum of all four sides. Which expressions will find the perimeter of a rectangle with a length of 4 and a width of a? 4 + a + 4 + a

4 + 2a

8 + 2a

8 + a

Thank you for posting your question here. The original fraction was greater than 1/2 if the result is a mixed number when Kaitlin divided a fraction by 1/2. In dividing a fraction you need to change the division sign to multiplication and invert the fraction to the right of the sign. Multiply the numerators and the denominators, but leave them in factored form.