What is the relationship between rational numbers and ratios

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3

Askateboard ramp is in the shape of a right triangle what is the height of the ramp