Question

Efetue as adições


a) (+2/5) + (1/3)



b) (-2/3) + (-5/6)

Answer 1

a) (2/5) + (1/3)  = (6/15) + (5/15) =

                       = 11/15

b) (-2/3) + (-5/6) = (-2/3) - (5/6) =

                          = (-4/6) - (5/6) =

                          = -9/6 =

                          = -3/2