Question

A geratriz de - 10,111... E - 10.010101...

Answer 1

-101 -(-10) / 9 = (-101+10)/9 = -91/9

Answer 2

-10,111... = -10 - 0,111...= -10 - $\frac{1}{9} = \frac{-90 - 1}{9} = \frac{-91}{9}$; - 10,010101...= -10 - 0,010101...= $- 10 - \frac{1}{99} = \frac{-990 - 1}{99} = \frac{-991}{99}$