Exercise 40 Page 30

When dividing real numbers, the quotient will be positive if the signs are the same and it will be negative if the signs are different. cc Same Sign & Different Signs (+)÷(+)=(+) & (+)÷(-)=(-) (-)÷(-)=(+) & (-)÷(+)=(-)In our case both numbers are negative, so the quotient will be positive.

- 12÷ (- 4)

DivToFrac

a÷ b=a/b

- 12/- 4

DivNegNeg

- a/- b=a/b

12/4

CalcQuot

Calculate quotient

3

We can verify this using a calculator.