Real Numbers
ACT Math · Flashcards
ACT MATH · FLASHCARDS
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QUESTION
State the property:
a
+
b
=
b
+
a
a + b = b + a
a
+
b
=
b
+
a
for all real numbers.
QUESTION
What is the reciprocal of
2
7
\frac{2}{7}
7
2
?
QUESTION
Identify the reciprocal of 5.
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ANSWER
1
5
\frac{1}{5}
5
1
. Reciprocal means
1
original number
\frac{1}{\text{original number}}
original number
1
.
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