Hi and welcome to another addition of hackingmaths. Today we're going to use the ti-84plus to find the highest common factor (otherwise known as the greatest common divisor) and the lowest...
We're asked, "What is the greatest common divisor of 20 and 40?" Another way to say this is, "gcd(20, 40) = ?" And "greatest common...
Let's try to learn a thing or two about ratios. So ratios are just expressions that compare quantities. So that might just be a fancy way-- let me just --of saying something that you may or...