<em>Since you can't divide a fraction by another fraction, you start by flipping the second fraction (-1/6 becomes -6/1) and changing the division sign to multiplication.</em>
-2/3 x -6/1
<em>Multiply across, numerator with numerator and denominator with denominator.</em><em>Also, when multiplying or dividing negative numbers, two negatives make a positive (i.e. -2 x -6 = +12)</em>
Well if the probability of getting a tail is 0.31 then the probability of getting a head must be 0.69 because 0.31 is much like 31% and the last 0.69 makes 69% resulting in the total 100% chance when combining the outcome chances seeing as a coin only has 2 sides. (Assuming we are speaking of an U.S. coin here) <span />
