Solving Real-World Problems: Mastering the Four Operations with Rational Numbers Basic Multiple Choice Questions What is the result of adding $-\frac{3}{4}$ and $\frac{5}{8}$? a) $-\frac{1}{8}$ b) $\frac{1}{8}$ c) $-\frac{7}{8}$ d) $\frac{7}{8}$ Simplify: $2.5 \times
