Classify Mixed Numbers: Sorting 19%, 0.9, and Fractions Above and Below 10%

Percent Comparison with Mixed Number Forms

Organise the following values into two groups of values less than 10% and values greater than 10%:

19%,0.9,0.09,19100,111 19\%,0.9,0.09,\frac{19}{100},\frac{1}{11}

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Sorted into 2 groups
00:03 First, we'll convert from percentages to fractions and decimal numbers, so we can compare
00:07 Now we'll sort each option as greater than or less than the given value
01:07 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 values into two groups of values less than 10% and values greater than 10%:

19%,0.9,0.09,19100,111 19\%,0.9,0.09,\frac{19}{100},\frac{1}{11}

2

Step-by-step solution

To solve this problem, we'll convert each value to a decimal and compare it with 0.100.10 (which represents 10%10\%):

  • Convert 19%19\% to a decimal: 19%=0.1919\% = 0.19. Compare with 0.100.10; 0.19>0.100.19 > 0.10.

  • 0.90.9 is already a decimal. Compare directly: 0.9>0.100.9 > 0.10.

  • 0.090.09 is already a decimal. Compare directly: 0.09<0.100.09 < 0.10.

  • Convert 19100\frac{19}{100} to a decimal: 19100=0.19\frac{19}{100} = 0.19. Compare with 0.100.10; 0.19>0.100.19 > 0.10.

  • Convert 111\frac{1}{11} to a decimal: 1110.0909\frac{1}{11} \approx 0.0909. Compare with 0.100.10; 0.0909<0.100.0909 < 0.10.

Thus, the values can be grouped as follows:

Values less than 10%10\%: 0.09,1110.09, \frac{1}{11}.

Values greater than 10%10\%: 0.9,19100,19%0.9, \frac{19}{100}, 19\%.

The solution involves accurate conversion and comparison:

Therefore, the correct grouping is:

0.09,111<10%0.09, \frac{1}{11}<10\%

0.9,19100,19%>10% 0.9, \frac{19}{100}, 19\% > 10\%

3

Final Answer

0.09,111<10% 0.09,\frac{1}{11}<10\%

0.9,19100,19%>10% 0.9,\frac{19}{100},19\%>10\%

Key Points to Remember

Essential concepts to master this topic
  • Conversion Rule: Convert all values to decimals for easy comparison
  • Technique: Convert 1/11 ≈ 0.0909, compare with 0.10 for 10%
  • Check: Verify 19% = 0.19 and 19/100 = 0.19 both > 0.10 ✓

Common Mistakes

Avoid these frequent errors
  • Confusing 0.9 with 0.09 or treating them as less than 10%
    Don't assume 0.9 is small because it's less than 1 = wrong grouping! Students often miss that 0.9 = 90%, which is much greater than 10%. Always convert to the same format before comparing values.

Practice Quiz

Test your knowledge with interactive questions

Approximately what is \( \frac{11}{50} \) written as a percentage?

FAQ

Everything you need to know about this question

Why do I need to convert everything to decimals first?

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Converting to decimals gives you a common format for easy comparison! It's much easier to compare 0.19 vs 0.10 than to compare 19% vs 111 \frac{1}{11} .

How do I convert fractions like 1/11 to decimals?

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Divide the numerator by the denominator: 111=1÷11=0.0909... \frac{1}{11} = 1 ÷ 11 = 0.0909... . You can round to 4 decimal places for comparison purposes.

Is 0.9 really greater than 10%?

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Yes! Remember that 0.9 = 90%, which is much bigger than 10%. Don't let the decimal fool you - 0.9 is nine-tenths, not nine-hundredths!

What's the easiest way to remember 10% as a decimal?

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Think: 10% = 10/100 = 0.10. The decimal 0.10 is your comparison benchmark - anything smaller goes in the "less than" group.

Why are 19% and 19/100 the same value?

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Because percent means "per hundred"! So 19% literally means 19100 \frac{19}{100} . They're just different ways to write the same number: 0.19.

How can I double-check my groupings?

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Convert everything to percentages instead! 1119.09% \frac{1}{11} ≈ 9.09\% and 0.09 = 9%, both less than 10%. Meanwhile, 0.9 = 90%, clearly greater than 10%.

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