Compare Mixed Numbers to 14%: Sorting Decimals and Fractions

Percentage Comparison with Decimal Conversion

Organise the following values into two groups of those greater than 14% and those less than 14%:

0.1,620,640,1495,13 0.1,\frac{6}{20},\frac{6}{40},\frac{14}{95},\frac{1}{3}

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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
00:15 Now we'll classify each option as greater than or less than the given value
01:32 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

Organise the following values into two groups of those greater than 14% and those less than 14%:

0.1,620,640,1495,13 0.1,\frac{6}{20},\frac{6}{40},\frac{14}{95},\frac{1}{3}

2

Step-by-step solution

To solve this problem, we'll convert all given values to decimal form and compare them with 0.14.

  • Convert 620\frac{6}{20} to a decimal: 620=0.3\frac{6}{20} = 0.3.
  • Convert 640\frac{6}{40} to a decimal: 640=0.15\frac{6}{40} = 0.15.
  • Convert 1495\frac{14}{95} to a decimal: 14950.1474\frac{14}{95} \approx 0.1474.
  • Convert 13\frac{1}{3} to a decimal: 130.3333\frac{1}{3} \approx 0.3333.
  • 0.10.1 is already a decimal.

Now compare each value to 0.14:

  • 0.1<0.140.1 < 0.14
  • 0.3>0.140.3 > 0.14
  • 0.15>0.140.15 > 0.14
  • 0.1474>0.140.1474 > 0.14
  • 0.3333>0.140.3333 > 0.14

Therefore, grouping the values:

  • Values greater than 14%: 13\frac{1}{3}, 640\frac{6}{40}, 620\frac{6}{20}
  • Values less than 14%: 1495\frac{14}{95}, 0.10.1

In conclusion, the values greater than 14% are 13\frac{1}{3}, 640\frac{6}{40}, 620\frac{6}{20} and less than 14% are 1495\frac{14}{95}, 0.10.1.

The correct answer choice is:

13,640,620>14% \frac{1}{3},\frac{6}{40},\frac{6}{20}>14\%

1495,0.1<14% \frac{14}{95},0.1<14\%

3

Final Answer

13,640,620>14% \frac{1}{3},\frac{6}{40},\frac{6}{20}>14\%

1495,0.1<14% \frac{14}{95},0.1<14\%

Key Points to Remember

Essential concepts to master this topic
  • Conversion Rule: Convert all values to same format before comparing
  • Technique: 14% = 0.14, so 640=0.15>0.14 \frac{6}{40} = 0.15 > 0.14
  • Check: Verify each comparison: 0.3333 > 0.14 and 0.1 < 0.14 ✓

Common Mistakes

Avoid these frequent errors
  • Comparing values in different formats without converting
    Don't compare 13 \frac{1}{3} directly to 14% = wrong groups! Mixed formats make comparison impossible and lead to incorrect sorting. Always convert everything to the same format first (all decimals or all percentages).

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 convert to decimals instead of percentages?

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Decimals are easier to calculate! Converting fractions like 1495 \frac{14}{95} to percentages requires extra steps, while decimal division is more straightforward.

How do I convert fractions to decimals quickly?

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Simply divide the numerator by the denominator. For example: 640=6÷40=0.15 \frac{6}{40} = 6 ÷ 40 = 0.15 . Use a calculator for complex fractions like 1495 \frac{14}{95} .

What if I get a repeating decimal?

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That's normal! 13=0.3333... \frac{1}{3} = 0.3333... Use enough decimal places to make an accurate comparison. Usually 4 decimal places is sufficient for these problems.

Can I compare by converting everything to fractions instead?

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Yes, but it's harder! You'd need a common denominator for all fractions. Since 14% = 14100=750 \frac{14}{100} = \frac{7}{50} , finding a common denominator with 95, 40, 20, and 3 is complex.

How do I avoid calculation errors?

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Double-check your division! Write down each conversion clearly: 0.1, 0.3, 0.15, 0.1474, 0.3333. Then compare each to 0.14 one by one to avoid mixing up the groups.

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