Question

efetue a expressão matemática w= -1/4.[2/3-(-1+1/2)]
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Answer 1

$w=\frac{-1}{4}.[\frac{2}{3}-(-1+\frac{1}{2})]\\w=\frac{-1}{4}.[\frac{2}{3}+1-\frac{1}{2}]\\w=\frac{-1}{4}.[\frac{4}{6}-\frac{3}{6}+1]\\w=\frac{-1}{4}.[\frac{1}{6}+1]\\w=\frac{-1}{4}.[\frac{1}{6}+\frac{6}{6}]\\w=\frac{-1}{4}.\frac{7}{6}\\w=\frac{-7}{24}$