When to use fraction or decimal form
Fraction form is best when an exact ratio matters. Decimal form is often easier for comparison, calculators, spreadsheets, and measurements. BinaryTrans keeps both directions available because students, builders, cooks, engineers, and spreadsheet users often need to move between formats quickly.
Terminating decimals such as 0.125 can be turned into exact fractions by placing the digits over a power of ten and reducing. Fractions can be turned into decimals by division. Some fractions terminate, while others repeat, so the original fraction remains the exact representation when precision matters.