Question

Put these in descending order 0.45, 4/5, 0.405%, 4.5,

Answer 1

4.5, 4/5, 0.45, 0.405%

Explanation:

So first we need to put them in equivalent forms.

4.5 and 0.45 are okay already.

4/5 calculates to 0.8, so now we can compare it to the above two numbers.

0.405% is a little tricky because you have to remember that "percent" really means "per century," or "per 100", or something divided by 100, or x/100.

So to turn that back into a "number" and not a "percent" we need to divide it by 100:

0.405/100 = 0.00405

Now can you put them in descending order.

I hope all the discussion helps, rather than just tell you the answer. Take care.