Given that 1 cup of rice mix with 2 cups of water, we are given the ratio of rice to water, which is 1/2.
1/3 cup of rice would be 1/3 rice ratio, we need to find the ratio of water for 1/3 rice.
x will stand for water.
1/(3*x) equals 1/2
Multiply by 2x
The answer is 2/3