simple multiplication question: multiplying radial fractionsI'm having a bit of brain block right now.In order to multiply any fractions you simply reduce to lowest form, then multiply num., then denom. When I tried with fractions in radian form it didn't work out so well.consider: ( 6 π / 5 ) ( 2 π / 3If I want to keep the π in the numerator I thought I should just multiply 6 and 2 to get 12 for 12 π. But I don't think that's a mathematically sound method of multiplication. So I figured I should just multiply the entire numerator and then divide out π: so that's ( 6 π ) ( 2 π ) = 118.4352528 then divide out π which gives me 37.69911184 which isn't right because it should be an integer.I know I'm missing something very fundamental here. Any help appreciated.

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simple multiplication question: multiplying radial fractionsI&#039;m having a bit of brain block right now.In order to multiply any fractions you simply reduce to lowest form, then multiply num., then denom. When I tried with fractions in radian form it didn&#039;t work out so well.consider:   (  6  π      /    5  )  (  2  π      /    3If I want to keep the   π in the numerator I thought I should just multiply   6 and   2 to get   12 for   12  π. But I don&#039;t think that&#039;s a mathematically sound method of multiplication. So I figured I should just multiply the entire numerator and then divide out   π: so that&#039;s   (  6  π  )  (  2  π  )  =  118.4352528 then divide out   π which gives me   37.69911184 which isn&#039;t right because it should be an integer.I know I&#039;m missing something very fundamental here. Any help appreciated.

Maeve Holloway · Accepted Answer

In terms of multiplication, there is nothing special about   π, you just multiply fractions in the usual way:            6      π        5              2      π        3    =            12              π        2              15    =            4              π        2              5       .It&#039;s not an integer, and there is no particular reason why it should be.

simple multiplication question: multiplying radial fractions I'm having a bit of brain block right

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