Decimal in Dividend
If the decimal is in the dividend (the number you are dividing into) all you need to do is divide like normal and bring the decimal straight up.
What is 25.3 divided by 7? Round your answer to the nearest hundredth.
Decimal in Divisor
If the decimal is in the divisor (the number you are dividing by), you need to do something a little bit different.
Let’s say you are asked to divide 54.9 by 2.47 and round your answer to the nearest hundredth. First set up the problem as you would normally.
Next you need to move the decimal points over however many spaces are behind the decimal in the divisor. 2.47 is the divisor so there are two digits behind the decimal, 4 and 7, so move both decimals over two spaces. Since 54.9 only has one space to the right of the decimal, just add a zero.
This makes sense since it’s easier to not deal with the decimal, and increasing the value of the numbers in a division problem won’t change the answer as long as you increase them both equally. Now the problem should look like this:
Just solve it as you would normally.
22.226 rounded to the nearest hundredth is 22.23, so the answer is 22.23.