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den1

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Give your answer as a fraction in the form a/b, in its simplest form.

", "ungrouped_variables": ["a", "b", "c", "d", "f", "g", "j", "m", "p", "r", "t", "v", "x", "z", "bb", "dd", "ff", "hh", "jj", "ll", "nn", "pp", "rr", "tt", "h", "k", "l", "n", "o", "q", "s", "u", "w", "y", "aa", "cc", "ee", "gg", "ii", "kk", "mm", "oo", "qq", "ss", "num1", "den1", "simplenum1", "simpleden1", "answer1", "num2", "den2", "simplenum2", "simpleden2", "answer2", "multiple", "multiple_d", "multiple_m", "num3", "den3", "simplenum3", "simpleden3", "answer3", "num4", "den4", "simplenum4", "simpleden4", "answer4", "ttt", "mmm", "nnn"], "parts": [{"customMarkingAlgorithm": "", "marks": 0, "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "type": "gapfill", "extendBaseMarkingAlgorithm": true, "prompt": "

$\\dfrac{\\var{w}}{\\var{x}} + \\dfrac{\\var{y}}{\\var{z}}$

\n

 [[0]]

", "showCorrectAnswer": true, "variableReplacements": [], "scripts": {}, "gaps": [{"customMarkingAlgorithm": "", "marks": 1, "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "type": "patternmatch", "variableReplacements": [], "matchMode": "regex", "displayAnswer": "{answer4}", "extendBaseMarkingAlgorithm": true, "showCorrectAnswer": true, "answer": "{answer4}", "scripts": {}, "unitTests": []}], "unitTests": [], "sortAnswers": false}, {"customMarkingAlgorithm": "", "marks": 0, "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "type": "gapfill", "extendBaseMarkingAlgorithm": true, "prompt": "

$\\dfrac{\\var{l}}{\\var{m}} - \\dfrac{\\var{n}}{\\var{ttt}}$

\n

 [[0]]

", "showCorrectAnswer": true, "variableReplacements": [], "scripts": {}, "gaps": [{"customMarkingAlgorithm": "", "marks": 1, "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "type": "patternmatch", "variableReplacements": [], "matchMode": "regex", "displayAnswer": "{answer3}", "extendBaseMarkingAlgorithm": true, "showCorrectAnswer": true, "answer": "{answer3}", "scripts": {}, "unitTests": []}], "unitTests": [], "sortAnswers": false}, {"customMarkingAlgorithm": "", "marks": 0, "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "type": "gapfill", "extendBaseMarkingAlgorithm": true, "prompt": "

$\\dfrac{\\var{a}}{\\var{b}} \\times \\dfrac{\\var{c}}{\\var{2*b}}$

\n

 [[0]]

", "showCorrectAnswer": true, "variableReplacements": [], "scripts": {}, "gaps": [{"customMarkingAlgorithm": "", "marks": 1, "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "type": "patternmatch", "variableReplacements": [], "matchMode": "regex", "displayAnswer": "{answer1}", "extendBaseMarkingAlgorithm": true, "showCorrectAnswer": true, "answer": "{answer1}", "scripts": {}, "unitTests": []}], "unitTests": [], "sortAnswers": false}, {"customMarkingAlgorithm": "", "marks": 0, "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "type": "gapfill", "extendBaseMarkingAlgorithm": true, "prompt": "

$\\dfrac{\\var{d}}{\\var{f}} \\div \\dfrac{\\var{mmm}}{\\var{nnn}}$

\n

 [[0]]

", "showCorrectAnswer": true, "variableReplacements": [], "scripts": {}, "gaps": [{"customMarkingAlgorithm": "", "marks": 1, "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "type": "patternmatch", "variableReplacements": [], "matchMode": "regex", "displayAnswer": "{answer2}", "extendBaseMarkingAlgorithm": true, "showCorrectAnswer": true, "answer": "{answer2}", "scripts": {}, "unitTests": []}], "unitTests": [], "sortAnswers": false}], "tags": [], "advice": "", "functions": {}, "preamble": {"css": "", "js": ""}, "type": "question", "contributors": [{"name": "Harry Flynn", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/976/"}, {"name": "Gareth Woods", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/978/"}]}]}], "contributors": [{"name": "Harry Flynn", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/976/"}, {"name": "Gareth Woods", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/978/"}]}