Question

Calcule o valor das expressões : (3,2%)



a. 12 - 5 : ( - 4/3 )



b. 3/7 . ( - 7/5 ) - 5/8 : ( - 5/2 )



c. ( - 4/9 + 1/15 ) : ( - 5/6 - 1/9 )



d. 4 . ( 2/9 ) + ( - 5/3 ) : ( 2/9 )





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Answer 1

A) 12-5÷(-4/3)=63/4

B) 3/7×(-7/5)-5/8÷(5/2)= -17/20

C) (-4/9+1/15)÷(-5/6-1/9)=2/5

D) 4×(2/9)+(-5/3)÷(2/9)= 119/18