"3/2 is 1. Not 1.5, but 1. This is what I was actually taught by one of my maths teachers, who is a Dr of Particle Physics, you even get taught his theories if you do a doctorate in Physics, but yeah, 3/2 is 1, because you always give the answer to the same amount of decimal places."
I understand the logic, but by my calculations 3/2 is 2, not 1. Because you would round up removing the decimal places. I believe your teachers logic is flawed as well as his math.
People who are confused and want to understand - put the formula in an excel spreadsheet and change the number of decimal places to none.
Here: Just make it 3.0/2.0 = 1.5 and tell your teacher you need to be more precise...lol