Cody states

Cody states that 1/4 + ( - 6/8 ) = 1 whole, while Eddie says that it is - 1/2. Who is correct? Justify your answer and explain your thinking.

Correct answer:

x =  -1/2

Step-by-step explanation:

$$\begin{gathered} a=\frac{1}{4}=0.25 \\ b=-6/8=-\frac{3}{4}=-0.75 \\ x=a+b=\frac{1}{4}+\frac{-3}{4}=\frac{1+(-3)}{4}=\frac{-2}{4}=-\frac{1}{2}=-0.5 \\ EddieOK \end{gathered}$$

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