A barrel contains 15/13 liters of water. 3/4 of the water was used to water plants. How many liters of water was used to water plants? How many liters of water are left in the barrel?

(15/13)(3/4) = _____ L used to water the plants.

If 3/4 of the water was used, 1/4 of the water is left:
(15/13)(1/4) = _____ L