1. Dividing Rational Numbers

2. Dividing Rules
1) If the numbers have the same signs then the quotient is positive.
-32 ÷ (-8 )= 4
2) If the numbers have different signs then the quotient is negative.
81 ÷ (-9) = -9

3. When dividing two negative numbers, the quotient is positive.
True
False
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4. When dividing a negative number and a positive number, use the sign of the larger number.
True
False
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5. The reciprocal of a number is called its multiplicative inverse.
The reciprocal of is
where a and b  0.
The reciprocal of a number is called its multiplicative inverse.
A number multiplied by its reciprocal/multiplicative inverse is ALWAYS equal to 1.

6. Example #1
The reciprocal of is
Example #2
The reciprocal of -3 is

7. Basically, you are flipping the fraction!
We will use the multiplicative inverses
for dividing fractions.

8. Which statement is false about reciprocals?
Reciprocals are also called additive inverses
A number and its reciprocal have same signs
If you flip a number, you get the reciprocal
The product of a number and its reciprocal is 1
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9. Examples 1)
When dividing fractions, change division to multiplying by the reciprocal.

10. 2)

11. What is the quotient of -21 ÷ -3?18
-18 7 -7
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12. .
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13. Thanks for coming!