Before we begin, let's make the fractions and percents a decimal. 100% as a decimal is 1, 45/40 as a decimal is 1.125, and 2/3 as a decimal is 0.666. Now, we have 1, 1.125, 0.4, and 0.666. You asked to order them from greatest to least. Here is the order it should be in. 45/40, 100%, 2/3, 0.4
