Question

Simplify: $\left|-21\right|+\left|-31\right|÷2$

Answer 1

$$\begin{gathered} \left|-21\right|+\left|-31\right|÷2=21+31÷2 \\ =21+\frac{31}{2} \\ =\frac{21\times 2+31}{2} \\ =\frac{42+31}{2} \\ =\frac{73}{2} \end{gathered}$$

Hence, the value of $\left|-21\right|+\left|-31\right|÷2$ is $\frac{73}{2}.$