Adding fractional amounts of the same variable.

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Lois Rollings

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Lois Rollings 8 years, 6 months ago

Published this.

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Lois Rollings 10 years, 6 months ago

Created this as a copy of EG3101 diagnostic algebra 3.

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Question statement

Which one of the following expressions is not equal to $\dfrac {\var{m}}{\var{n}} \var{v} + \dfrac{\var{p}}{\var{q}} \var{v}$ ?

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			Name	Type	Generated Value

n	integer	4
q	integer	5
m	integer	3
p	integer	1
v	string	$n$
num	integer	19
denom	integer	20
addnum	integer	4
adddenom	integer	9
mult	integer	8
multnum	integer	152
multdenom	integer	160
dec	rational	19/20

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Generated value: `integer`

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adddenom
denom
num
q

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$\dfrac{\var{num}}{\var{denom}}\var{v}$

Marks: Distractor Message:
$\dfrac{\var{addnum}}{\var{adddenom}}\var{v}$

Marks: Distractor Message:
$\dfrac{\var{multnum}}{\var{multdenom}} \var{v}$

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$\var{dec} \var{v}$

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Advice

Recall that to add fractions you first need to find a common denominator.

You then need to write both fractions in terms of this common denominator; then you can add the numerators.

You cannot just add the original numerators and denominators.

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Adding fractional amounts of the same variable.

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Taxonomy: mathcentre

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Taxonomy: Context

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Checkpoint description

Lois Rollings 8 years, 6 months ago

Lois Rollings 10 years, 6 months ago

Error in variable testing condition

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Generated value: `integer`

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Error

Adding fractional amounts of the same variable.

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Lois Rollings 8 years, 6 months ago

Lois Rollings 10 years, 6 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

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Choose one from a list

Advanced settings

Generated value: `integer`