Question

considerando A= 2/3- 1,444 e B= 0,777... determine A:B

Answer 1

$A= \frac{2}{3} -1,444..=\frac{2}{3} -\frac{13}{9} =\frac{6}{9} -\frac{13}{9} =\frac{6-13}{9} =-\frac{7}{9} \\ B=0,777... = \frac{7}{9} \\ A:B=-\frac{7}{9}:\frac{7}{9}=-\frac{7}{9}\cdot\frac{9}{7}=-\frac{63}{63}=-1$