Combining fractions

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Mohammad Rahman

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2 years, 9 months ago

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Mohammad Rahman 2 years, 9 months ago

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Newcastle University Mathematics and Statistics 9 years, 2 months ago

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Question statement

{dosomething} the following fractions and reduce the resulting fraction to lowest form.
Input your answer as a fraction and not as a decimal.

Give any introductory information the student needs.

			Name	Type	Generated Value

a	integer	2
b	integer	9
g	integer	3
dosomething	string	Take away
f	integer	10
s1	integer	-1
action1	string	taking away
action	string	Taking away

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Generated value: `integer`

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Parts

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1. Gap Mathematical expression
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1. Step Information only

Gap-fill

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$\simplify[std]{{a} / {g} + ({s1*b} / {f})}$
Input your answer here: Unnamed gap

No decimal numbers allowed.

Do not include brackets in your answer.

You can get help by clicking on Steps. If you do so you will lose 1/2 mark.

Advice

The rule for {action1} fractions is

$\simplify{a/b+ {s1}*(c/d)=(a*d+{s1}*b*c)/(b*d)}.$
In this case we have:

$\simplify[std,!unitFactor]{{a} / {g} + ({s1*b} / {f}) = ({a} * {f} + {g} * {s1*b}) / ({g} * {f}) ={a*f+s1*g*b}/{g*f}}.$
Note that this fraction is in its lowest form as there are no common factors in the denominator and the numerator.

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Taxonomy: mathcentre

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Taxonomy: Context

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Checkpoint description

Mohammad Rahman 2 years, 9 months ago

Newcastle University Mathematics and Statistics 9 years, 2 months ago

Error in variable testing condition

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Generated value: `integer`

Parts

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Combining fractions

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Mohammad Rahman 2 years, 9 months ago

Newcastle University Mathematics and Statistics 9 years, 2 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Gap-fill

Generated value: `integer`