Question

At the beginning of the day the stock market goes up 15and1/2 points and stays at this level for most of the day. At the end of the day the stock market goes down 90and1/4points from the high at the beginning of the day. What is the total change in the stock market from the beginning of the day to the end of the day?
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Answer 1

$$\begin{gathered} \mathrm{Dear}\mathrm{Student}, \\ \mathrm{The}\mathrm{total}\mathrm{change}\mathrm{will}\mathrm{be}\mathrm{the}\mathrm{value}\mathrm{at}\mathrm{the}\mathrm{satrt}-\mathrm{value}\mathrm{at}\mathrm{the}\mathrm{end}\mathrm{of}\mathrm{the}\mathrm{day} \\ =15\frac{1}{2}-90\frac{1}{4} \\ =\left(15+\frac{1}{2}\right)-\left(90+\frac{1}{4}\right) \\ =15-90+\frac{1}{2}-\frac{1}{4} \\ =-75+\frac{1}{4} \\ =-74-1+\frac{1}{4} \\ =-74-\frac{3}{4} \\ =-\left(74+\frac{3}{4}\right)=-74\frac{3}{4} \\ \mathrm{So}\mathrm{it}\mathrm{is}\mathrm{down}\mathrm{by}74\frac{3}{4}\mathrm{points} \\ \mathrm{Regards} \end{gathered}$$