First, notice that we have 35 + signs and 49 stars.
Then, the ratio + to star is:
[tex]35\colon49=\frac{35}{49}=\frac{5}{7}=5\colon7[/tex]
Now, we have that the sum of + signs and stars is 35+49=84, then, the ratio of stars to the sum of both of them is:
[tex]49\colon84=\frac{49}{84}=\frac{7}{12}=7\colon12[/tex]
