FractionAnswer1

Answer is a Fraction

Try it out

Click to enlarge

This PG code shows how to write a question in which the answer must be a fraction (rational number).

• Download file: File:FractionAnswer1.txt (change the file extension from txt to pg when you save it)
• File location in NPL: FortLewis/Authoring/Templates/Algebra/FractionAnswer1.pg

Templates by Subject Area

PG problem file	Explanation
Problem tagging data	Problem tagging:
DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "contextFraction.pl", "AnswerFormatHelp.pl", ); TEXT(beginproblem());	Initialization:
Context("Fraction-NoDecimals"); $answer = Compute("3/2");	Setup: The macro contextFraction.pl provides four contexts: Context("Fraction"); Context("Fraction-NoDecimals"); Context("LimitedFraction"); Context("LimitedProperFraction"); For the differences among these, see the POD documentation contextFraction.pl.html
Context()->texStrings; BEGIN_TEXT Simplify \( \displaystyle \frac{6}{4} \). $BR $BR Answer = \{ ans_rule(20) \} \{ AnswerFormatHelp("fractions") \} END_TEXT Context()->normalStrings;	Main Text:
$showPartialCorrectAnswers = 1; ANS( $answer->cmp( studentsMustReduceFractions=>1, reduceFractions=>1, allowMixedNumbers=>0, ) );	Answer Evaluation: There are many context flags that control how fraction answers are checked. See the POD documentation contextFraction.pl.html
Context()->texStrings; BEGIN_SOLUTION ${PAR}SOLUTION:${PAR} Factor and cancel to obtain \( \displaystyle $answer \) END_SOLUTION Context()->normalStrings; ENDDOCUMENT();	Solution:

Templates by Subject Area