Compare Numbers with 1/5: Sorting Fractions, Decimals, and Percentages

Fraction Comparison with Mixed Number Forms

Organise the following into two groups of parts greater than 15 \frac{1}{5} and parts less than 15: \frac{1}{5}:

5100,24%,50%,14,0.5 \frac{5}{100},24\%,50\%,\frac{1}{4},0.5

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Sorted into 2 groups
00:04 First we'll convert fractions to percentages and decimal numbers, so we can compare
00:36 Now we'll sort each option as greater than or less than the given value
01:28 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Organise the following into two groups of parts greater than 15 \frac{1}{5} and parts less than 15: \frac{1}{5}:

5100,24%,50%,14,0.5 \frac{5}{100},24\%,50\%,\frac{1}{4},0.5

2

Step-by-step solution

To solve this problem, we'll follow these steps:

  • Step 1: Convert all parts to decimals.

  • Step 2: Compare each decimal to 0.2 0.2 (the decimal form of 15 \frac{1}{5} ).

  • Step 3: Organize the values based on whether they are greater or lesser than 0.2 0.2 .

Now, let's work through each step:

Step 1: Convert each value to a decimal.

  • 5100=0.05 \frac{5}{100} = 0.05

  • 24%=0.24 24\% = 0.24

  • 50%=0.5 50\% = 0.5

  • 14=0.25 \frac{1}{4} = 0.25

  • 0.5=0.5 0.5 = 0.5

Step 2: Compare each decimal to 0.2 0.2 .

  • 0.05<0.2 0.05 < 0.2

  • 0.24>0.2 0.24 > 0.2

  • 0.5>0.2 0.5 > 0.2

  • 0.25>0.2 0.25 > 0.2

  • 0.5>0.2 0.5 > 0.2

Step 3: Group the values:

  • Parts less than 15 \frac{1}{5} : 5100 \frac{5}{100}

  • Parts greater than 15 \frac{1}{5} : 24%,50%,14,0.5 24\%, 50\%, \frac{1}{4}, 0.5

Therefore, the correct arrangement is:

5100<15 \frac{5}{100}<\frac{1}{5}

24%,50%,14,0.5>15 24\%,50\%,\frac{1}{4},0.5>\frac{1}{5}

3

Final Answer

5100<15 \frac{5}{100}<\frac{1}{5}

24%,50%,14,0.5>15 24\%,50\%,\frac{1}{4},0.5>\frac{1}{5}

Key Points to Remember

Essential concepts to master this topic
  • Base Conversion: Convert all values to decimal form for easy comparison
  • Technique: 15=0.2 \frac{1}{5} = 0.2 , so compare each value to 0.2
  • Check: Group correctly: 0.05 < 0.2, while 0.24, 0.5, 0.25 > 0.2 ✓

Common Mistakes

Avoid these frequent errors
  • Comparing without converting to same format
    Don't compare 5100 \frac{5}{100} to 24% directly without converting = wrong grouping! Different formats make comparison impossible. Always convert all values to the same format (decimals work best) before comparing.

Practice Quiz

Test your knowledge with interactive questions

Approximately what is \( \frac{6}{25} \) as a percentage?

FAQ

Everything you need to know about this question

Why should I convert everything to decimals instead of fractions?

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Decimals make comparison much easier! While you could convert everything to fractions with common denominators, decimals let you see immediately which numbers are bigger: 0.24 > 0.2 is clearer than 24/100 > 20/100.

How do I quickly convert percentages to decimals?

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Simply divide by 100 or move the decimal point two places left! So 24% becomes 0.24, and 50% becomes 0.5. Easy!

What if I forget what 1/5 equals as a decimal?

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Just divide: 1÷5=0.2 1 ÷ 5 = 0.2 . Or remember that 1/5 = 20%, which is 0.20 as a decimal.

Can some values be equal to 1/5?

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Yes! If any value equals exactly 15 \frac{1}{5} (or 0.2), it belongs in neither group. But in this problem, all values are clearly greater or less than 0.2.

Why is 5/100 less than 1/5 when 5 is bigger than 1?

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Don't just look at the numerators! 5100=0.05 \frac{5}{100} = 0.05 while 15=0.2 \frac{1}{5} = 0.2 . The denominator matters - dividing by 100 makes a much smaller result than dividing by 5.

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