Julian calculates the volume of a rectangular prism with the dimensions 3/4ft by 4 feet by 1/2 ft. His work is shown here.
V = lwh
V = 3/4 (4/1) (1/2)
= 3 (4) (1) / (4) (1) (2)
= 12/6
= 2 ft³
What error did Julian make?
a. He multiplied the numerators incorrectly.
b. He multiplied the denominators incorrectly.
c. He simplified 12/6 incorrectly.
d. He wrote 4 as a fraction incorrectly.