HELP!!! I have trouble with my math!!!! Who do you think is correct?? I multiplied 1 1/2 and 9 and my answer was 13 1/2. The calculator said that 1 and 1/2 times 9 equals 5 and 1/2. Who do you think

HELP!!! I have trouble with my math!!!! Who do you think is correct??

I multiplied 1 1/2 and 9 and my answer was 13 1/2. The calculator said that 1 and 1/2 times 9 equals 5 and 1/2.

Who do you think is right????? Hurry I need to know so I can buy how many cream cheeses I need for tomorrow!!!!!!!!!!!!!!!!!