Noelle makes $19,200 a year and spends about $2,400 ($200 * 12 months) each year on entertainment. Therefore, the fraction of her annual income spent on entertainment is $2,400 / $19,200, which simplifies to 1/8 or one-eighth.
a. $2,400 / $19,200
b. $200 * 12 months / $19,200
c. $2,400 / $200 * 12 months
d. $19,200 / $2,400