Combining fractions

Error

There was an error loading the page.

Contributors

History

○

Christian Lawson-Perfect 7 years, 9 months ago

Saved a checkpoint:

Made the marking script cope with negative answers. (Whoops!)

Restore this checkpoint

○

Christian Lawson-Perfect 8 years, 6 months ago

Saved a checkpoint:

Added a marking script to make sure the student's answer is reduced.

Restore this checkpoint

○

Bill Foster 55 years, 2 months ago

Created this.

Name	Status	Author	Last Modified
Combining fractions	draft	Bill Foster	06/08/2020 08:42
Lois's copy of Combining fractions	draft	Lois Rollings	02/09/2016 12:47

There are 20 other versions that do you not have access to.

Question statement

{dosomething} the following fractions and reduce the resulting fraction to lowest form.

Give any introductory information the student needs.

			Name	Type	Generated Value

a	integer	1
b	integer	2
g	integer	4
dosomething	string	Take away
f	integer	5
op	integer	-1
action1	string	taking away
action	string	Taking away

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random(1..11)

JME function reference

Description

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `integer`

→ Used by:

Advice
"Unnamed part" - prompt
"Unnamed part" → "Unnamed gap" - Correct answer

Parts

Gap-fill
1. Gap Mathematical expression
  Add
1. Step Information only

Gap-fill

Ask the student a question, and give any hints about how they should answer this part.

$\displaystyle \simplify[std]{{a} / {g} + ({op*b} / {f})} =$ Unnamed gap

No decimal numbers allowed.

Do not include brackets in your answer.

You can get help by clicking on Show steps.

Advice

The rule for {action1} fractions is \[\simplify{a/b+ {op}*(c/d)=(a*d+{op}*b*c)/(b*d)}.\]
In this case we have:
\[\simplify[std,!unitFactor]{{a} / {g} + ({op*b} / {f}) = ({a} * {f} + {g} * {op*b}) / ({g} * {f}) ={a*f+op*g*b}/{g*f}}.\]
Note that this fraction is in its lowest form as there are no common factors in the denominator and the numerator.

Give a worked solution to the whole question.

Use this tab to check that this question works as expected.

There was an error which means the tests can't run:

Part	Test	Passed?
Gap-fill
Gap-fill		Hasn't run yet
Mathematical expression
Mathematical expression		Hasn't run yet
Information only

This question is used in the following exams:

Loading...

Error

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Christian Lawson-Perfect 7 years, 9 months ago

Christian Lawson-Perfect 8 years, 6 months ago

Bill Foster 55 years, 2 months ago

Error in variable testing condition

Error

Warning

Generated value: `integer`

Parts

Gap-fill

Loading...

Error

Combining fractions

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Christian Lawson-Perfect 7 years, 9 months ago

Christian Lawson-Perfect 8 years, 6 months ago

Bill Foster 55 years, 2 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Gap-fill

Generated value: `integer`