Use this fraction calculator to add, subtract, multiply and divide fractions. Shows the work and the steps to do math with fractions.The TI-84 Plus family of graphing calculators do not have a specific fraction key, but does have a template that allows fractions to be entered. An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics. Treat the fraction bar as a division sign. Type the top number into your calculator, then click divide. Calculator Adding Machine 1920's ; Returns. A mechanical calculator, or calculating machine, is a mechanical device used to perform the basic operations of arithmetic automatically Acceptable outofstate weight certificates should include comparable information. Calculator Adding Machine 1920's ; Returns.