Question 420222
1. 6m+18
____________
     7m+21


6(m+3)/7(m+3)

=6/7

2. 2t + 6
__________
t^2 - 9

2(t+3)/(t+3)(t-3)
2/(t-3)

3. 8x^2-10x-3
_______________
8x2-6x-9

{{{(8x^2-6x-4x-3)/(8x^2-12x+6x-9)}}}


{{{((2x(4x-3)-1(4x-3))/((4x(2x-3))+3(2x-3)))}}}


{{{((2x-1)(4x-3))/(4x+3)(2x-3))}}}