Problema Solution

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

Answer provided by our tutors

Since 1/7 L of water fills 1/9 of the aquarium, 9 times 1/7 will fill the aquarium:

9(1/7) = 9/7 = 1 2/7 L of water will fill the aquarium.