ALEKS Basic Math Placement Test Review 2024/25
how to find domain with a given equation - ANSWER -if a fraction, set denom. to zero, then solve
-in equation, plug in 0 for x
*usually can be a + or - solution*
how to find domain with a given equation - ANSWER -if a fraction, set
denom. to zero, then solve
-in equation, plug in 0 for x
*usually can be a + or - solution*
(-) + (-)= ...
(-) x (-)= ...
(-) divided by a (-)= ... - ANSWER (-)
(+)
(+)
quotient - ANSWER division
adding and subtracting fractions - ANSWER -make denoms the same
-add/subtract numerators
, multiplying fractions - ANSWER just multiply numerators across and denoms
across and simplify
dividing fraction - ANSWER multiply by reciprocal (change second fraction to
reciprocal)
multiplying/dividing/adding mixed fractions - ANSWER turn them into
regular fractions (multiplying # by denom, adding it to num, keeping denom the same) and
continue
subtracting mixed fractions - ANSWER *first: make denoms the same*
set up as if you're subtracting two large numbers (on top and on bottom)
how to solve problems like 5-2 (1/3) - ANSWER 1) make problem 5- (2 (1/3))
2) separate : 5- 2- (1/3) to get: 3- (1/3)
3) rewrite whole #: 2+1- (1/3)
4) rewrite as: 2 + (3/3) - (1/3) to ed up with:
2 (2/3)
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