Ratio, SM-Bank 009 MC Which of the following ratios is not in simplest form? \(4:7\) \(13:3\) \(1:0.5\) \(2:9\) Show Answers Only \(C\) Show Worked Solution \(1 :0.5\) \(=1:\dfrac{1}{2}\) \(\ \ \ \text{(Multiply by 2 to remove fraction.)}\) \(=2:1\) \(\Rightarrow C\)