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Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Rational Expressions
Enrich Your Math Word Power
1
rational expression
A)
a fraction
B)
a ratio of two polynomials with denominator not equal to 0
C)
an expression involving fractions
D)
a fraction in which the numerator and denominator contain fractions
2
complex fraction
A)
a fraction having rational expressions in the numerator, denominator, or both
B)
a fraction with a large denominator
C)
the sum of two fractions
D)
a fraction with a variable in the denominator
3
building up the denominator
A)
the opposite of reducing a fraction
B)
finding the least common denominator
C)
adding the same number to the numerator and denominator
D)
writing a fraction larger
4
least common denominator
A)
the largest number that is a multiple of all denominators
B)
the sum of the denominators
C)
the product of the denominators
D)
the smallest number that is a multiple of all denominators
5
extraneous solution
A)
a number that appears to be a solution to an equation but does not satisfy the equation
B)
an extra solution to an equation
C)
the second solution
D)
a nonreal solution
6
ratio of a to b
A)
b/a
B)
a/b
C)
a/(a + b)
D)
ab
7
proportion
A)
a ratio
B)
two ratios
C)
the product of the means equals the product of the extremes
D)
a statement expressing the equality of two ratios
8
extremes
A)
a and d in a/b = c/d
B)
b and c in a/b = c/d
C)
the extremes-means property
D)
if a/b = c/d then ad = bc
9
means
A)
the average of a, b, c, and d
B)
a and d in a/b = c/d
C)
b and c in a/b = c/d
D)
if a/b = c/d, then (a + b)/2 = (c + d)/2
10
cross-multiplying
A)
ab = ba for any real numbers a and b
B)
(a - b)
2
= (b - a)
2
for any real numbers a and b
C)
if a/b = c/d, then ab = cd
D)
if a/b = c/d, then ad = bc
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