-ab>0 is the answer cause the others make 0 not to be simplified
Ok, so you know that we can't divide fractions no matter what. The first thing you do is keep the first fraction, then change the divide sign to multiplication ( opposite of division is multi. ) and finallly flip the last fraction to 7/1 .
Here's a video to help you understand that method more ...
https://www.youtube.com/watch?v=uMz4Hause-o
The answer ends up as 6.53333333333
Hope this helps !
It has to be 12. I mulitplied 8 x 1.5
