Question 76839
t-3
_______ 3 and 6 are exponents need to simplify and make positive
t-6  
{{{t^(-3)/t^(-6)}}}
Negative exponents just determine the position of the variable.  If it's in the numerator move it to the denominator, if it's in the denominator, move it to the numerator.  When you do that, change the sign of the exponent:
{{{t^6/t^3}}}
{{{t^(6-3)}}}
{{{highlight(t^3)}}}
Happy Calculating!!!