HELP PLEASE!!!!!!!!!!!! MATH QUESTION!

Question

A patio has an area of 20 5/6 square feet. The width of the patio is 3 1/2 feet. What is the length of the patio?

Answer 1

Area = length x width

20 5/6 = length x 3 1/2

(20 5/6) ÷ (3 1/2) =length

125/6 ÷ 7/2 = length

125/6 * 2/7 = length

250/42 = length

5 40/42 = length

5 20/21 = length

Check

(250/42)(7/2)

125/6

20 5/6