Does anyone know how to covert temperatures?

Well I m not sure about the first one but the 2nd question I m good with it. My math teacher thought me how to do it, she said to make 2 fractions. First it wood be 9 over 5 n then the 2nd fraction wood be 25 over 1. When u look at the 2 fractions, 5 can go into 25, five times, so u cross out the 5 and make it into a 1 and then cross out the 25 and make it into a 5. Now when u multiply like regular, it will come out 2 be 45 over 1, basically just 45. So now u have 2 add 32 to the 45 which wood be 97 and 97 degrees Fahrenheit wood be your answer!!! Good luck with the first one.