\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)

Ratio

Ratio

Finding Ratios in Whole-Part Relationships

Exercise
What is the ratio of girls to kids?


  • There are \(\textcolor{colordef}{2}\) girls.
  • There are \(\textcolor{colorprop}{3}\) kids.
  • The ratio of girls to kids is \(\dfrac{\textcolor{colordef}{2}}{\textcolor{colorprop}{3}}\).

Exercise
What is the ratio of girls to kids?


  • There are \(\textcolor{colordef}{2}\) girls.
  • There are \(\textcolor{colorprop}{5}\) kids.
  • The ratio of girls to kids is \(\dfrac{\textcolor{colordef}{2}}{\textcolor{colorprop}{5}}\).

Exercise
What is the ratio of triangles to shapes?


  • There are \(\textcolor{colordef}{3}\) triangles.
  • There are \(\textcolor{colorprop}{4}\) shapes.
  • The ratio of triangles to shapes is \(\dfrac{\textcolor{colordef}{3}}{\textcolor{colorprop}{4}}\).

Exercise
What is the ratio of circles to shapes?


  • There are \(\textcolor{colordef}{4}\) circles.
  • There are \(\textcolor{colorprop}{7}\) shapes.
  • The ratio of circles to shapes is \(\dfrac{\textcolor{colordef}{4}}{\textcolor{colorprop}{7}}\).

Equivalent Ratios

Simplifying Ratios

Exercise
What is the ratio of red apples to all apples (write in simplified form)?


  • There are \(\textcolor{colordef}{2}\) red apples.
  • There are \(\textcolor{colorprop}{4}\) apples in total.
  • The ratio of red apples to all apples is \(\dfrac{\textcolor{colordef}{2}}{\textcolor{colorprop}{4}}\).
  • The simplified ratio is \(\dfrac{1}{2}\) (half are red).

Exercise
What is the ratio of red apples to all apples (write in simplified form)?


  • There are \(4\) red apples.
  • There are \(6\) apples in total.
  • The ratio of red apples to all apples is \(\dfrac{4}{6}\).
  • The simplified ratio is \(\dfrac{2}{3}\).

Exercise
What is the ratio of red apples to all apples (write in simplified form)?


  • There are \(3\) red apples.
  • There are \(6\) apples in total.
  • The ratio of red apples to all apples is \(\dfrac{3}{6}\).
  • The simplified ratio is \(\dfrac{1}{2}\) (half are red).

Exercise
What is the ratio of red apples to all apples (write in simplified form)?


  • There are \(3\) red apples.
  • There are \(9\) apples in total.
  • The ratio of red apples to all apples is \(\dfrac{3}{9}\).
  • The simplified ratio is \(\dfrac{1}{3}\).