Jacob used \(\frac{1}{7}\) of a liter of water to fill \(\frac{1}{9}\) of the fish aquarium. How many liters of water are needed to fill the entire aquarium?
Answer (2)
To find the result we can use proportion
7 1 − − − − − − − − − − − − − − − 9 1 x − − − − − − − − − − − − − − − 1
Now we have crossmultiply, so 7 1 ∗ 1 = 9 1 ∗ x /*9 (multiply both sides by 9) 7 9 = x - its the result
To fill the entire aquarium, Jacob needs 7 9 liters of water. This is approximately 1.29 liters. We calculated this using proportion based on how much water fills a part of the aquarium.
;
