Question

If 1/2 of a gallon of paint covers 1/8 of a wall, how much paint is need to cover the entire wall?

Answer 1

One gallon of paint can cover
`(1)/(4)` of a wall.

Explanation:

start by writing the ratio:

`(1)/(2\\)` :
`(1)/(8)`

There are two halfs in one gallon so you multiply the
`(1)/(2\\)` by 2. And whatever you do to one side must be done to the other so:

`(1)/(2\\)`×2 :
`(1)/(8)`×2

Evaluate.

1:
`(2)/(8)`

this can be further simplified to

1:
`(1)/(4)`

Answer 2

4 gallons

Explanation:

multiply 1/2 by 8 to find the number