Fraction Operations
ISEE Upper Level Mathematics Achievement · Flashcards
ISEE UPPER LEVEL MATHEMATICS ACHIEVEMENT · FLASHCARDS
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QUESTION
What is
(
−
2
3
)
+
5
6
\left(-\frac{2}{3}\right) + \frac{5}{6}
(
−
3
2
)
+
6
5
in simplest form?
QUESTION
What is the general method to subtract
a
b
−
c
d
\frac{a}{b} - \frac{c}{d}
b
a
−
d
c
using a common denominator?
QUESTION
What is the sign rule for a negative fraction
−
a
b
\frac{-a}{b}
b
−
a
compared to
a
−
b
\frac{a}{-b}
−
b
a
?
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ANSWER
−
a
b
=
a
−
b
=
−
a
b
\frac{-a}{b}=\frac{a}{-b}=-\frac{a}{b}
b
−
a
=
−
b
a
=
−
b
a
. A negative sign can be placed in the numerator, denominator, or in front of the fraction equivalently.
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