Ratios & Proportions
A ratio is a comparison of two numbers.
What is the ratio of tulips to cacti?
There are 3 ways to write a ratio: 2 to 3, , or 2:3
What is the ratio of pens to pencils?
The ratio of two numbers a and b is the quotient
Sussan has a bag with 3 pens, 4 pencils, 7 felt tip pens, and 1 pencil sharpener.
What is the ratio of pencils to pens?