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SICP exercise 1.02

Problem

Translate the following expression into prefix form:

$\frac{5+4+(2-(3-(6+\frac{4}{5})))}{3(6-2)(2-7)}$

Solution

(/
(+ 5 4
(- 2
(- 3
(+ 6
(/ 4 5)))))
(* 3
(- 6 2)
(- 2 7)))