The smallest common denominator is 30 in so
<span>9/10=27/30 and 5/6=25/30 are your answers ; ]</span>
Pick a 3. P1/6
Pick another not 3 but 5 or 6 is P2/5
1/6 x 2/5 1/15 = 0.0667
[Due to the fact that your question doesnt have enough context here is my answer]
Laila is wrong due to the fact that its not possible to have 4 = -4 on a number line...
You have to do 7,800 divide by 12 and you get D) 650.