A fraction \(\frac{a}{b}\) means a ÷ b. Convert to a decimal.<br><br>&bull; Simplify: \(\frac{50}{400} = \frac{1}{8}\)<br>&bull; Convert \(\frac{1}{8}\) to denominator 1000: multiply by \(\frac{125}{125}\)<br>&bull; \(\frac{1 \times 125}{8 \times 125} = \frac{125}{1000}\)<br>&bull; \(\frac{125}{1000} = 0.125\)<br><br>Final Answer: 0.125