Marie is painting her bedroom. One-half gallon paint will cover one-sixth of her wall. We can use pictures and unit rates to find the number of gallons of paint it will take to paint one whole wall. The rectangle below represents Marie’s wall.
Since one-half gallon of paint will cover one-sixth of the wall. Split the wall into six equal pieces.
3. How many gallons of paint will cover each one-sixth piece of the wall?
4. Mark each piece of the wall with one-half.

5. How many one-half gallons of paint will it take to paint the whole wall?
6. How many gallons of paint will it take to paint the whole wall?

Gallons to walls
Write the ratio:
Divide to get a unit rate:
Unit rate: