don’t know how to start this problem can someone show me the steps to this problem!?

Answer: There are 8 small fish for every 10 big fish. If there are 3 small fish, what is the best estimate for the number of big fish that there will be
Step-by-step explanation: There are 8 small fish for every 10 big fish. If there are 3 small fish, what is the best estimate for the number of big fish that there will be Please answer