class Rational

See also Kernel.BigDecimal.

Rational(22, 7).to_d(3) # => 0.314e1

require 'bigdecimal/util'
require 'bigdecimal'

The default +precision+ is +0+.
automatically.
the number of digits to represent the float being converted is determined
significant digits for the result. When +precision+ is set to +0+,
The +precision+ parameter is used to determine the number of

Returns the value as a BigDecimal.

rat.to_d(precision) -> bigdecimal
call-seq:

def to_d(precision=0)
  BigDecimal(self, precision)
end