how do i go about answering this question ? I know the asnwer is 1/3, but how do i get that and not 1/6

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Since Jim saved $12, he still needs to pay $18-$12 = $6. 6/18 = 1/3 <==Answer

## Comments

Remember that 18 is the demoninator and you will be less likely to come up with 1/6 for an answer.