GCSE Maths Practice: sharing-in-a-ratio

\( \begin{array}{l}\text{£105 is shared between three people in the ratio } 7:5:3. \\ \text{How much does the person receiving the smallest share get?}\end{array} \)

Choose one option:

\( \text{£35} \) \( \text{£15} \) \( \text{£21} \) \( \text{£25} \)