Question

Determine o valor das expressões:

Answer 1

a)(9/16):(-9/8)=

9/16 × (-8/9)=

- 72/144= -1/2

b)3.(-1/8)-(-12).(+1/16)=

-3/8 - (-12/16)=

-3/8 + 6/8= +3/8