Question

Frances uses 2/3 cup of pineapple juice for every 1/3 cup of orange juice to make a smoothie. Enter the number of cups of pinapple juice frances uses for 1 cup of orange juice

Answer 1

Write and solve an equation of ratios to answer this question:

Pineapple Orange

Juice Juice

x 1 cup

---------- = ------------

2/3 c 1/3 c

Then (1/3 c)x = (2/3) c^2.

Multiplying both sides by (3/1) will clear the fractions:

x = (3/1)(2/3) c = 2 cups (answer)

Frances will need 2 cups of OJ for each 1 cup of pineapple juice.