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Objective The student will be able to:

Objective The student will be able to:. divide rational numbers. SOL: none. Designed by Skip Tyler, Varina High School and Nicole Kessinger, Deep Run High School. Dividing Rules. 1) If the numbers have the same signs then the quotient is positive . -32 ÷ (-8 )= 4

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Objective The student will be able to:

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  1. ObjectiveThe student will be able to: divide rational numbers. SOL: none Designed by Skip Tyler, Varina High School and Nicole Kessinger, Deep Run High School

  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. Answer Now When dividing two negative numbers, the quotient is positive. • True • False

  4. Answer Now When dividing a negative number and a positive number, use the sign of the larger number. • True • False

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

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

  8. Answer Now 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

  9. Examples 1) When dividing fractions, change division to multiplying by the reciprocal.

  10. 2)

  11. Answer Now What is the quotient of-21 ÷ -3? • 18 • -18 • 7 • -7

  12. Answer Now • . • . • . • .

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