CFLib.org – Common Function Library Project

Description:
Convert fractions to decimal.

Return Values:
Returns a number.

Example:

<cfoutput>
1 1/2: #fractionToDecimal("1 1/2")#<br />
3/8: #fractionToDecimal("3/8")#<br />
12 13/64: #fractionToDecimal("12 13/64")#<br />
</cfoutput>

Parameters:

Full UDF Source:

/**
 * Convert fractions to decimal.
 * 
 * @param fraction      Value to convert to decimal. (Required)
 * @return Returns a number. 
 * @author Trevor Orr (fractorr@yahoo.com) 
 * @version 1, August 16, 2008 
 */
function fractionToDecimal(fraction) {
    var thisNumber        = 0;
    var thisFraction    = 0;
    var thisOut         = "0.0";

    if (ListLen(arguments.fraction, " ") EQ 1) {
        if (Trim(arguments.fraction) contains  "/") {
            thisOut = Val(ListFirst(arguments.fraction, "/")) / Val(ListLast(arguments.fraction, "/"));
        } else {
            thisOut = Val(Trim(arguments.fraction));
        }
    } else {
        if (Trim(ListLast(arguments.fraction, " ")) contains  "/") {
            thisOut = Val(ListFirst(arguments.fraction, " "));
            thisOut = thisOut + Val(ListFirst(ListLast(arguments.fraction, " "), "/")) / Val(ListLast(ListLast(arguments.fraction, " "), "/"));
        } else {
            thisOut = Val(Trim(arguments.fraction));
        }
    }

    return thisOut;
}