Answer
a) $$\frac{-5}{-1} = 5$$ $$\frac{-13}{-1} = 13$$ $$\frac{-21}{-1} = 21$$
b) $$\frac{5}{-1}= -5$$ $$\frac{13}{-1}= -13$$ $$\frac{21}{-1} = -21$$
Divide by $-1$ give you the same number but with different sign
Work Step by Step
a) $$\frac{-5}{-1} = 5$$ $$\frac{-13}{-1} = 13$$ $$\frac{-21}{-1} = 21$$
b) $$\frac{5}{-1}= -5$$ $$\frac{13}{-1}= -13$$ $$\frac{21}{-1} = -21$$
Divide by $-1$ give you the same number but with different sign
