exam Maths Puzzle Numerical Ability

I need help i have been trying to figure out this question all day can you help me figure it out

9/10 - 4/12

Read Solution (Total 0)

exam Other Question

Add and express in the simplest form

4x/x^2-18x+72 + 4/x-6

Thanks The Following is from the Compass sample test.
Algebra Placement
Rational Expression

13. For all x not equal to -4, which of the following is equivalent to the expression
x^2