Question

qual o resutado com conta inteira

Answer 1

$( \frac{-1}{2} ) . ( \frac{-1}{2} )+ \frac{3}{2} - \frac{1}{4} = + \frac{1}{4} + \frac{6}{4} - \frac{1}{4} = + \frac{7}{4} - \frac{1}{4} = + \frac{6}{4}$