Farmer smith has 64 cows. 12 are white and the rest are black. What is the ratio of white to black cows?
The number of black cows is 64 - 12 = <<64-12=52>>52.
The ratio of white to black cows is 12:52, which can be simplified to 3:13.
The ratio of white to black cows is 12:52, which can be simplified to 3:13.