Question 49604
Multiply the rational expression:
{{{((-2a^2)/3a^2)(20a/15a^3)}}} If you rewrite this as follows, then perhaps it will make it easier to see what can be cancelled:
{{{((-2*a*a)/(3*a*a))(20*a/(15*a*a*a))}}} Cancel an a in the top with an a in the bottom, one-for-one.
{{{((-2)/3)(20/(15*a*a))}}} Now do the numbers. A common factor of 20 and 15 is 5, so cancel 5's.
{{{((-2)/3)(4/(3*a*a))}}} Finally, multiply the numerators and the denominators.
{{{(-8)/(9a^2)}}}