Mia is painting her room. her room has 4 walls. each wall uses 2/3 galloon of paint. how much paint does she need to paint all of her walls?

2     4    8
-- x -- = --
3     1    3

8
-- = 2 1/3
3

If you do 4 x 2/3 yow will have to multiply  2 by 4 which equals 8 
so now you have 8 over 3 (8/3) know make that in a mixed number which is 2 2/3 that means Mia needs 2 gallons and 2 thirds of a gallon to paint her walls 

Hope this Helps :)