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 Question from Wica, a student: Hello, So happy I found this site. I am having problems with bases. My question is : Please perform the subtraction between two number over different bases : A. (5874)base 12 - (216)base 9 B. (216)base 9 - (5874)base 12

Hi,

I would first convert $216_9$ to base 12 and then perform the subtraction. There is an example of subtraction in my response to a question from Janelee.

Write back if you need more assistance,
Penny

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