Okay this is easy, you just got to understand. You could multiply across or cross multiply, either way you get the same answer.
2 6
• - =
3. 12
BY multiply you would get 6/12, YOU could simplify this by 6 so the final answer would be 1/2 REMEMBER step 1: Multiply the top numbers: Step 2: multiply the bottom numbers. Step: get your result if it can be simplied then what you get will be your new answer.