Question

1. Resolva as operações em Q.

a) - 1/2 + 3/5 - 1/4 =

b) - 3/2 + (- ( 1)/4 ) – ( - 1/3 ) =

c) - 5/4 + 1/2 - 3/5 =

d) 7/5 + ( - 1/3 ) - 1/2 =

2. Calcule os produtos:

a) ( - 7/5 ) . ( - 9/10 ) =

b) ( - 6/15 ) . ( - 30/12 ) =

c) ( - 1/2 ) . ( - 4/9 ) . ( - 3/6 ) =

d) ( - 15/30 ) . ( + 10/18 ) =

e) ( + 16/20 ) . ( - 10/8 ) =



3.Calcule os quocientes:

a) ( - 7/9 ) : ( - 9/7 ) =

b) ( - 11/15 ) : ( + 12/11 ) =

c) ( + 13/14 ) : ( - 14/13 ) =

d) ( - 17/7 ) : ( - 9 ) =



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Answer 1

Resposta:

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