Question

If 4/3 liters of water are enough to water 2/5 of the plant in the house, how much water is necessary to water all the plant in the house?Write an equation to represent the situation and then find the answer.

Answer 1

Since we need 4/3 liters of water to water 2/5 of the plants in the house, then we need

`(4)/(3)/(2)/(5)\text{.}`

of water to water all the plants.

Recall that:

`((a)/(b))/((c)/(d))=(ad)/(bc)\text{.}`

Therefore:

`((4)/(3))/((2)/(5))=(4*5)/(3*2)\text{.}`

Simplifying the above result, we get:

`(20)/(6)=(10)/(3)\text{.}`

Answer:

`(10)/(3)\text{ liters.}`