T2T || FAQ || Ask T2T || Teachers' Lounge || Browse || Search || Thanks || About T2T
View entire discussion
[ next >>]
From: DOG <firstname.lastname@example.org> To: Teacher2Teacher Public Discussion Date: 2004021715:33:20 Subject: you can ALWAYS divide across! When you get the two fractions to have common denominators, you can ALWAYS divide across. This process of finding common denominators is not as mysterious as the "waving of the wand" that we all learned (invert and multiply). You end up with the same solution, but the reason is more justifiable since you are still dividing, not using inverse operations.
Math Forum Home || The Math Library || Quick Reference || Math Forum Search