Question: Solve for $d$.
$\frac{1}{2} d + \frac{2}{3} = \frac{3}{4}$
d =
1. **State the problem:** Solve for $d$ in the equation $$\frac{1}{2} d + \frac{2}{3} = \frac{3}{4}$$.
2. **Isolate the term with $d$:** Subtract $\frac{2}{3}$ from both sides:
$$\frac{1}{2} d + \frac{2}{3} - \frac{2}{3} = \frac{3}{4} - \frac{2}{3}$$
which simplifies to
$$\frac{1}{2} d = \frac{3}{4} - \frac{2}{3}$$
3. **Find common denominator and subtract fractions:**
The common denominator of $4$ and $3$ is $12$.
$$\frac{3}{4} = \frac{9}{12}, \quad \frac{2}{3} = \frac{8}{12}$$
So,
$$\frac{1}{2} d = \frac{9}{12} - \frac{8}{12} = \frac{1}{12}$$
4. **Solve for $d$ by dividing both sides by $\frac{1}{2}$:**
$$d = \frac{\frac{1}{12}}{\frac{1}{2}} = \frac{1}{12} \times \frac{2}{1}$$
Show cancellation:
$$d = \frac{\cancel{1}}{12} \times \frac{2}{\cancel{1}} = \frac{2}{12}$$
5. **Simplify the fraction:**
$$d = \frac{2}{12} = \frac{1}{6}$$
**Final answer:**
$$d = \frac{1}{6}$$