Question

8. - ½ + [ 3/4 ÷ - 5/6 + ½ (7/8 – 3)]
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197/80

Answer 1

-27/80

Explicación paso a paso:

-1/2+[3/4×-6/5+1/2×17/8]

-1/2+[-18/20+17/16]

-1/2+(-9/10+17/16)

-1/2-144/160+170/160

-1/2+26/160

-1/2+13/80

-40/80+13/80

-27/80