proportions

What is a proportion?

• When two ratios can be simplified
• When two ratios are equivalent and show the same value
• When two ratios have the exact same numbers
• When two ratios can be multiplied by 2

Which ratio below is proportional to the ratio   5/6?

• 6/5
• 50/75
• 25/30
• 12/10

Do the ratios form a proportion?

• Yes, they form a proportion.
• No, they do not form a proportion.

Solve the proportion:

• 15
• 5
• 10
• 12

Write the ratio as a fraction in simplest form.
15 girls to 6 boys   

• 5 to 2
• 5/3
• 3 to 5
• 5/2

Write the ratio as a fraction in simplest form. 
 
  24 players : 3 teams

• 8:3
• 8 to 1
• 8/1
• 8/3

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

Solve the proportion.

• n=6
• n=24
• n=7
• n=8

Solve the proportion:

• 15
• 5
• 10
• 12

Solve:

• 6

• 7

• -8

• -5