[Haskell-beginners] Mixed division

[Lawrence Bottorff]

I can divide a float by an integer

>  2.4 / 3
0.7999999999999999

but why can I not do this?

< 2.4 / (length [1,2,3])
<interactive>:288:1-22: error:
    * No instance for (Fractional Int) arising from a use of `/'
    * In the expression: 2.4 / (length [1, 2, 3])

LB
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