Math Small Group
RATIOS
Write a ratio with a fraction bar AND as a decimal for
each comparison:
1. Blue triangles to red triangles
PROPORTIONS
Definition: A PROPORTION is an equation stating that two ratios are equal.
It can be written in two different ways:
a/b = c/d
or
a:b = c:d
You can determine whether ratios form a proportion using a common
denominator. Let’s look:
4/5 and 20/25
SOLVING PROPORTIONS
You can use the means-extremes property to solve for a
missing term, also.
Let’s look:
8/6 = 4/n