5. \( \left(\frac{1}{2}+\frac{1}{8}\right)-\left(\frac{3}{2}-\frac{3}{4}\right) \) มีค่าเท่ากับข้อใด 2

Calculate or simplify the expression \( (1/2+1/8)-(3/2-3/4) \). Calculate the value by following steps: - step0: Calculate: \(\left(\frac{1}{2}+\frac{1}{8}\right)-\left(\frac{3}{2}-\frac{3}{4}\right)\) - step1: Add the numbers: \(\frac{5}{8}-\left(\frac{3}{2}-\frac{3}{4}\right)\) - step2: Subtract the numbers: \(\frac{5}{8}-\frac{3}{4}\) - step3: Reduce fractions to a common denominator: \(\frac{5}{8}-\frac{3\times 2}{4\times 2}\) - step4: Multiply the numbers: \(\frac{5}{8}-\frac{3\times 2}{8}\) - step5: Transform the expression: \(\frac{5-3\times 2}{8}\) - step6: Multiply the numbers: \(\frac{5-6}{8}\) - step7: Subtract the numbers: \(\frac{-1}{8}\) - step8: Rewrite the fraction: \(-\frac{1}{8}\) ผลลัพธ์ของ \( \left(\frac{1}{2}+\frac{1}{8}\right)-\left(\frac{3}{2}-\frac{3}{4}\right) \) คือ -0.125