A 600mL jar is 1/3 full of water if all that water is poured into a 300mL jar what fraction of the smaller jar will it fill
How many mL is 1/3 of the 600 jar?
(1/3)600 = 200
200 mL is 1/3 of the 600 jar.
So you have 200 mL of water.
What fraction of 300 is 200?
300x = 200
x = 2/3
200 is 2/3 of 300.