Math Is Fun Forum

I am not sure how a forum works sorry, I am a mom of teenagers and just returned to school. So its been a looong time since I have done math besides adding things up at the grocery store.  Can I post the math problems in this topic? I am going to and see if I get any feedback? I need help with a problem that has fractions in it but I don't know how to put it on this post, can someone help?
Thank  you for your time
Jenniferm