Ratio, SM-Bank 010 MC Which of the following ratios is not in simplest form? \(25:4\) \(9:63\) \(108:11\) \(6:35\) Show Answers Only \(B\) Show Worked Solution \(9 :63\) \(=\dfrac{9}{9}:\dfrac{63}{9}\) \(\ \ \text{Divide by HCF of 9 and 63. }\) \(=1:7\) \(\Rightarrow B\)