Question

A window shaped like a parallelogram has an area of 47 2/3 sq. The height of the window is 7 1/3 feet. How long is the base of the window?

Answer 1

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

Explanation:

Answer 2

47 2/3 ÷ 7 1/3

make them improper fractions;

143/3 ÷ 22/3

Make 22/3 a reciprocal(flip the fraction upside down);

143/3 ÷ 3/22

now multiply across;

143/3 x 3/22 = 6 5/10 which simplifies to 6 1/2 feet.