Question

a))((-3/50))-(+0,75)=

Answer 1

oi!

(( - 3/50)) - ( + 0,75 ) =                                         300]50______

                                                                                      0,06

((-0,06)) - (+ 0,75 ) =

 (-0,06) + ( - 0,75) = - 0,81                                          0,06

                                                                                +  0, 75

                                                                             -------------------

                                                                                    0,81 

bons estudos!