Final answer:
To find the fraction that represents the amount of money Ilya spent, divide the amount spent by the total allowance.
Step-by-step explanation:
To find the fraction that represents the amount of money Ilya spent, we need to divide the amount spent by the total allowance. Ilya spent $0.65 out of her $1.00 allowance. To write this as a fraction, we can express $0.65 as a fraction of $1.00.
$0.65 / $1.00 = 65/100
Therefore, Ilya spent 65/100 of her dollar.