Simplest form :
What is the ratio for the number of legs on a bird to number of legs on an elephant.
What is 2:4
What is the ratio for a number of lungs we have to number of heart?
What is 2:1
What is 6.5x47?
What is 305.5
What is the ratio for the number of wheels on a regular car to number of wheels on a bicycle?
What is 4:2
What is 0.98x7.5?
What is 7.350