Julia: Rational numbers

A rational can be written as a ration (Simple fraction), Operator // is used to find exact ratio of integers.

julia> 10//15
2//3

julia> 20//60
1//3

julia> -4//-24
1//6

julia> -15//5
-3//1

julia> 5//-15
-1//3

Get numerator and denominator of rational value
num() and den() functions are used to get numerator and denominator of rational value.

julia> num(4//24)
1

julia> den(4//24)
6

julia> num(6//32)
3

julia> den(6//32)
16

Convert rational value to float
It is very simple, pass the rational value to float() function.

julia> 6//32
3//16

julia> float(6//32)
0.1875

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