Solve the Division Equation: 18:3 Basic Arithmetic

Q: What does the colon symbol (:) mean in math?

The colon (:) means division! It's the same as the ÷ symbol or writing it as a fraction. So 18:3 = 18÷3 = $ \frac{18}{3} $.

Q: How do I know if 6 is the right answer?

Use the multiplication check! If 18÷3 = 6, then 6×3 should equal 18. Since 6×3 = 18, your answer is correct!

Q: Why do we write it as a fraction first?

Writing $ \frac{18}{3} $ helps you see the division clearly. You can then simplify by finding what number goes into both 18 and 3 evenly.

Q: What if the division doesn't come out evenly?

Sometimes division gives you a remainder or a decimal answer. But in this problem, 18÷3 divides evenly because 3 goes into 18 exactly 6 times!

Q: Is there a faster way to solve this?

With practice, you can use multiplication facts! Since you know 3×6 = 18, you immediately know that 18÷3 = 6. It's the same fact, just backwards!

Division Operations with Whole Number Results

$18:3=$

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations

00:00 Simplify the fraction

00:04 Write division as a fraction

00:09 Factor 18 into 6 and 3

00:13 Reduce what we can

00:17 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution

Understand the problem

$18:3=$

Step-by-step solution

Let's write the expression in the following form:

$\frac{18}{3}$

We'll divide both the numerator and denominator by 3 and get:

$\frac{6}{1}=6$

Final Answer

$6$

Key Points to Remember

Essential concepts to master this topic

Division Rule: Eighteen divided by three equals six
Technique: Convert to fraction form $\frac{18}{3}$ then simplify
Check: Multiply answer by divisor: 6 × 3 = 18 ✓

Common Mistakes

Avoid these frequent errors

Confusing division with multiplication
Don't multiply 18 × 3 = 54! This gives a completely wrong answer because you're doing the opposite operation. Always remember division asks 'how many groups of 3 fit into 18?'

Practice Quiz

Test your knowledge with interactive questions

Write the fraction shown in the picture, in words:

FAQ

Everything you need to know about this question

What does the colon symbol (:) mean in math?

The colon (:) means division! It's the same as the ÷ symbol or writing it as a fraction. So 18:3 = 18÷3 = $\frac{18}{3}$ .

How do I know if 6 is the right answer?

Use the multiplication check! If 18÷3 = 6, then 6×3 should equal 18. Since 6×3 = 18, your answer is correct!

Why do we write it as a fraction first?

Writing $\frac{18}{3}$ helps you see the division clearly. You can then simplify by finding what number goes into both 18 and 3 evenly.

What if the division doesn't come out evenly?

Sometimes division gives you a remainder or a decimal answer. But in this problem, 18÷3 divides evenly because 3 goes into 18 exactly 6 times!

Is there a faster way to solve this?

With practice, you can use multiplication facts! Since you know 3×6 = 18, you immediately know that 18÷3 = 6. It's the same fact, just backwards!

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