|Here's how you divide one decimal by another:
Suppose you want to divide 4.5 by 1.8
First, you write your problem as you normally would:
Next, you move the decimals in both the numbers to the right the same number of times until the divisor is a whole number.
The decimal point in your answer will be lined up with the one in the number you are dividing into. Now, you do your division:
Next, if you have a remainder, bring down a zero from the number being divided and continue:
Check you answer for reasonableness by ignoring the part past the decimal and dividing in your head! For example, in this last problem 45/18 is about 2 so the answer should be near 2.