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*
(-) + (-)= ...
(-) x (-)= ...(-) divided by a (-)= ... - ANSWER (-) (+) (+) quotient - ANSWER division adding and subtracting fractions - ANSWER -make denoms the same -add/subtract numerators 1 / 2
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:
- (2/3)
- / 2