Math Is Fun Forum

I'm wanting to refresh the memory of my high schoolers, who are having trouble doing arthematic without a calculator.  For long division I want to have them show the remainder as a fraction.  I can't seem to find resoucre material that does that?

For example 145 divided by 12 I want shown as 12 and 1/12th - not 12r1.  12r1 is not a number that has meaning away from the division problem - for example to use in another part of a word proble.  12r1 could be the answer to 253 divided by 21 which would be 12 and 1/21st.  So clearly, all 12r1's are not equal and the only way to really express the answer is with a fraction or decimal remainder.  However, I can't seem to find any explanations of long division or anything that really instructs on how to express the remainder in a useful way....