Hello! So, you should set up the problem like x/60 = 5/12. If you look at the bottom of the fraction, you’ll se that 12 goes into 60 five times. So to find “x” (numerator above 60), you have to multiply 5 * 5 as well. That equals 25. In other words, 25/60. The numerator is 25.
It she has a total of $40 and you take away the $20 she spent of gas and the $25 she spent for parking she would have -$5 but since she paid $30 back on the card she has a balance of $25
