jacksonsouza / fraction-calc

CLI for basic fraction arithmetic

fraction-calc

• Install
  • chmod +x init.sh
  • ./init.sh
    • The script may ask for your password - the included command npm link must be run as root.
  • set -f
    • Please advise that set -f must be run in order to allow * multiplication operator to function properly - otherwise you must use x for multiplication.
• Run calc {fraction} {operator} {fraction}
• Tests
  • npm test for entire suite
  • jest tests/{filename} for individual tests

Problem Statement

Write a command line program in the language of your choice that will take operations on fractions as an input and produce a fractional result.

• Legal operators shall be *, /, +, - (multiply, divide, add, subtract)
• Operands and operators shall be separated by one or more spaces
• Mixed numbers will be represented by whole_numerator/denominator. e.g. "3_1/4"
• Improper fractions and whole numbers are also allowed as operands

Examples

calc 1/2 * 3_3/4
= 1_7/8

calc 2_3/8 + 9/8
= 3_1/2