A window shaped like a parallelogram has a area of 18 and 1 3rd square feet. the height of the window is 3 and 1 3rd. how long is the base of the window

A = bh

Plug in what we know:

18 1/3 = 3 1/3b

Divide 3 1/3 to both sides:

(18 1/3) / (3 1/3) = b

Convert both of them into improper fractions:

55/3 / 10/3 = b

Flip the 2nd fraction and multiply:

55/3 * 3/10 = b

Multiply the numerators and denominators together:

165/30 = b

Convert to a mixed number:

b = 5 1/2