If a\4 = b\7, what is the value of a\b ? thank you ! :)

Given
[tex]\frac{a}{4}=\frac{b}{7}[/tex]To find the value of a/b.
Explanation:
It is given that,
[tex]\frac{a}{4}=\frac{b}{7}[/tex]That implies,
By cross multiplying,
[tex]\begin{gathered} a\times7=b\times4 \\ \Rightarrow\frac{a}{b}=\frac{4}{7} \end{gathered}[/tex]Hence, the answer is 4/7.