7th: Lesson 39

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

Back

b = 24

Front

Back

c = 21

Front

Back

a = 9

Front

Back

d = 2

Front

Back

n = 12

Front

What is the cross-multiplication method?

Back

Cross-multiplication is a method used to solve proportions by multiplying the numerator of one ratio by the denominator of the other ratio.

Front

Back

The relationship is that a * d = b * c.

Front

What does it mean for two fractions to be equivalent?

Back

Two fractions are equivalent if they represent the same value or proportion.

Front

How can you check if two fractions are equivalent?

Back

You can check by cross-multiplying and seeing if the products are equal.