Answer: The fraction of these 46 cities that have a lake or river running through them is 7/46.
Step-by-step explanation:
Hi, to solve this problem we have to analyze the information given:
The cities that have a lake or river running through them are 7 (the 20 that only want it don´t count).
So, we have to divide the number of cities that have a lake or river running through them (7) by the total number of cities (46).
Mathematically speaking:
7/46
The fraction of these 46 cities that have a lake or river running through them is 7/46.