Question

If we subtract $-\frac{1}{2}$ from a number and multiply it by $\frac{1}{2}$, we obtain $\frac{7}{8}$. Find the number.

Answer 1

Let the number be $x$.

Then according to the problem,

$\frac{1}{2}(x+\frac{1}{2})=\frac{7}{8}$

or, $x+\frac{1}{2}=\frac{7}{4}$

or, $x=\frac{7}{4}-\frac{1}{2}$

or, $x=\frac{5}{4}$.