Convert the Fraction: Simplifying 4/200 to Its Simplest Form

Fraction Simplification with Decimal Conversion

4200= \frac{4}{200}=

❤️ Continue Your Math Journey!

We have hundreds of course questions with personalized recommendations + Account 100% premium

Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Convert to decimal fraction
00:03 Convert the fraction so the denominator is a multiple of 10 and any 10
00:07 Make sure to divide both numerator and denominator
00:16 Write the numerator as a number
00:20 Now according to the denominator move the decimal point to the left
00:23 There are 2 zeros in the denominator, so move 2 places to the left
00:29 And this is the solution to the problem

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

4200= \frac{4}{200}=

2

Step-by-step solution

To solve this problem, we will convert the fraction 4200\frac{4}{200} into a decimal:

  • Step 1: Simplify the fraction if possible. Notice that both the numerator and the denominator can be divided by 4:
    4200=4÷4200÷4=150\frac{4}{200} = \frac{4 \div 4}{200 \div 4} = \frac{1}{50}.
  • Step 2: Convert 150\frac{1}{50} directly to a decimal by division:
    Since 150=0.02\frac{1}{50} = 0.02 (as 5050 goes into 100100 twice, making 0.020.02 the decimal form).
  • Step 3: Alternatively, adjust the denominator to 100: Internally, 150=2100\frac{1}{50} = \frac{2}{100} because multiplying both numerator and denominator by 2 results in a 2100\frac{2}{100}, which is clearly 0.020.02.

Therefore, the decimal representation of 4200\frac{4}{200} is 0.020.02.

3

Final Answer

0.02

Key Points to Remember

Essential concepts to master this topic
  • Rule: Find GCD to simplify fractions to lowest terms
  • Technique: 4200=150 \frac{4}{200} = \frac{1}{50} by dividing both by 4
  • Check: Convert simplified fraction: 150=0.02 \frac{1}{50} = 0.02

Common Mistakes

Avoid these frequent errors
  • Converting without simplifying first
    Don't divide 4 ÷ 200 directly on calculator = 0.02 but miss the pattern! This skips understanding and makes similar problems harder. Always simplify the fraction first, then convert to see the cleaner relationship.

Practice Quiz

Test your knowledge with interactive questions

Write the following fraction as a decimal:

\( \frac{5}{100}= \)

FAQ

Everything you need to know about this question

Why should I simplify before converting to decimal?

+

Simplifying first helps you see patterns and work with smaller numbers! 150 \frac{1}{50} is much easier to understand than 4200 \frac{4}{200} .

How do I find the GCD of 4 and 200?

+

List the factors! 4: 1, 2, 4 and 200: 1, 2, 4, 5, 8, 10... The largest common factor is 4, so divide both numerator and denominator by 4.

Is there a faster way to convert 1/50 to decimal?

+

Yes! Since 150=2100 \frac{1}{50} = \frac{2}{100} (multiply top and bottom by 2), you can see it's 2 hundredths = 0.02 immediately.

What if the fraction doesn't simplify nicely?

+

That's okay! Not all fractions have neat decimal forms. Some create repeating decimals. Always try to simplify first, then convert whatever you get.

How can I check my decimal answer?

+
  • Convert back: 0.02 = 2100=150 \frac{2}{100} = \frac{1}{50}
  • Multiply up: 150×44=4200 \frac{1}{50} \times \frac{4}{4} = \frac{4}{200}

🌟 Unlock Your Math Potential

Get unlimited access to all 18 Decimal Fractions - Basic questions, detailed video solutions, and personalized progress tracking.

📹

Unlimited Video Solutions

Step-by-step explanations for every problem

📊

Progress Analytics

Track your mastery across all topics

🚫

Ad-Free Learning

Focus on math without distractions

No credit card required • Cancel anytime

More Questions

Click on any question to see the complete solution with step-by-step explanations