You should be proud of yourself.  You got pretty far on this test, but the correct answer is 9/20.  To write 45 cents as a fraction, start with 45/100.  Then to reduce that answer, you divide both numbers by five to get 9/20.

The good news is that Volume 2 of the Learn Math Fast System will be very easy for you.  You'll probably finish it in just a few weeks.  That book will iron out any confusion you have about fractions, decimals, percentages and negative numbers.  Use coupon code PT2026 to get 10% off your order.