Skip to content
Learn
Practice
Games
Ask
For Parents
Pricing
English
Log in
Start free
Algebra
Ratio & proportion
Cross multiply, or find the value of one.
1
Cross multiply
Two fractions equal to each other? Multiply diagonally.
3 practice questions
+15 XP
2
The unitary method
Find the value of one, then multiply up to however many you need.
3 practice questions
+15 XP