Question 619452
You can do 2/3 = 0.66, but you cannot divide a/b to get ab. Here's how you do this.



{{{((2a)/(3b))^2}}}



{{{((2a)^2)/(3b)^2)}}}



{{{(2^2*a^2)/(3^2*b^2)}}}



{{{(4a^2)/(9b^2)}}}



So {{{((2a)/(3b))^2}}} simplifies to {{{(4a^2)/(9b^2)}}}



In other words, {{{((2a)/(3b))^2=(4a^2)/(9b^2)}}} for all values of 'a' and 'b' where b is not zero.