Answer:
Ratio defined as the comparison between two quantities in terms of multiplication.
You can express ratio as colon or fraction i.e,
a: b or [tex]\frac{a}{b}[/tex]
Given the following: 35 girls : 15 boys
By definition of ratio:
[tex]\frac{35 \text{girls}}{15 \text{boys}}[/tex]
Divide both numerator and denominator by 5 we get;
[tex]\frac{7 \text{girls}}{3 \text{boys}}[/tex]
The ratio as a fraction in simplest form is, 7 girls : 3 boys
