Why do I have to find the Greatest Common Factor (GCF)?

Question

Comparing Fractions and Ratios

Answer 1

🧠 How to Find the Greatest Common Factor (GCF)

The GCF is the biggest number that can divide evenly into two (or more) numbers. Here's how to find it:

🔢 Step 1: List the factors of each number

1. Factors are numbers that multiply to make the number.
2. Example: Factors of 12 are 1, 2, 3, 4, 6, 12

🧮 Step 2: Circle or highlight the factors that are the same

1. These are called common factors.
2. Example: Factors of 12 and 18 → both have 1, 2, 3, 6

⭐ Step 3: Choose the biggest one

1. That’s the Greatest Common Factor (GCF)!
2. GCF of 12 and 18 is 6

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