Question

Jacob used 1/7 of a liter of water to fill 1/9 of the fish aquarium . How many liters if water are needed to fill the aquarium ?

Answer 1

Answer: 1 2/7

Explanation:

Answer 2

Set up a proportion:
1/7 L of water - 1/9 of the aquarium
x L of water - 1 aquarium (the whole aquarium)


`((1)/(7))/((1)/(9))=(x)/(1) \\ \\ (1)/(7) * 9=x \\ \\ (9)/(7)=x \\ \\ x=1 (2)/(7)`

1 2/7 liters of water are needed to fill the aquarium.