Answer:
[tex]\frac{29}{40}[/tex]
Step-by-step explanation:
we know that
To find the ratio of yellow to red marbles, divide the numbers of yellow marbles by the number of red marbles
Let
x-----> the numbers of yellow marbles
y----> he number of red marbles
we have
[tex]x=29, y=40[/tex]
so
[tex]\frac{x}{y}=\frac{29}{40}[/tex]