To simplify the given questions
Part A
![600g\colon4Kg](https://img.qammunity.org/2023/formulas/mathematics/college/o28y9wpf34tc7l89qabwoq8v5v291m2d0k.png)
To find the ratio, we will first have to convert the factors into the same units
We will convert 4kg to grams
So that we will have
![\begin{gathered} 1\operatorname{kg}=1000g \\ 4\operatorname{kg}=4000g \end{gathered}]()
Therefore
![600g\colon4Kg=600g\colon4000g](https://img.qammunity.org/2023/formulas/mathematics/college/tevk04f1g08gijo04sclg8xfgajuzje2qj.png)
Next, we will have to reduce the ratios to the lowest term
Thus, the answer is
![3\colon20](https://img.qammunity.org/2023/formulas/mathematics/college/j4zbrs8h2wn3whtrb611n33j6vvh4nj4c3.png)
Part B
![350\colon400](https://img.qammunity.org/2023/formulas/mathematics/college/21qoaw6nuxq2w9edtijdqcju5rodfagqqm.png)
Since they have the same units, we will reduce the ratio to its lowest term
Therefore, the answer will be
![7\colon8](https://img.qammunity.org/2023/formulas/mathematics/college/85p94rey2mqawzotu6g2460lazejqxqegt.png)