To get better at proportions for your GCSE exam, here are some helpful tips and resources:

What Are Proportions?

• Definition: A proportion is a way to show that two ratios are equal. For example, if we write $a/b = c/d$, we’re saying that the two ratios are the same.

Techniques to Use

• Cross-Multiplication: This is an easy way to solve problems with proportions. If you have $a/b = c/d$, you can cross-multiply like this: $a \cdot d = b \cdot c$.

  For example, if you have the equation $3/x = 6/12$, you can cross-multiply. So, you would get $3 \cdot 12 = 6 \cdot x$.

Helpful Resources

• Worksheets: You can practice with online tools like Mathway or websites made just for GCSE revision.

• Videos: Check out YouTube for many great videos that explain proportions in a clear way.

By using these techniques and resources, you'll feel more confident and improve your skills with proportions!