Compare Mixed Numbers with 1/8: Sorting 10%, 20%, 11/80, and More

Fraction Comparison with Mixed Number Forms

Organise the following into two groups of values smaller than 18 \frac{1}{8} and values larger than18 \frac{1}{8} :

10%,20%,1180,97800,0.15 10\%,20\%,\frac{11}{80},\frac{97}{800},0.15

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Step-by-step written solution

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1

Understand the problem

Organise the following into two groups of values smaller than 18 \frac{1}{8} and values larger than18 \frac{1}{8} :

10%,20%,1180,97800,0.15 10\%,20\%,\frac{11}{80},\frac{97}{800},0.15

2

Step-by-step solution

The problem requires us to organize values into two groups based on whether they are smaller or larger than 18 \frac{1}{8} , which equals 0.125 0.125 .

First, convert the percentages to decimal form:

  • 10%=0.10 10\% = 0.10

  • 20%=0.20 20\% = 0.20

Now convert the fractions to decimal form:

  • 1180=0.1375 \frac{11}{80} = 0.1375

  • 97800=0.12125 \frac{97}{800} = 0.12125

The decimal 0.15 0.15 is already given in decimal form.

We compare all values to 0.125 0.125 (which is 18 \frac{1}{8} ):

  • 0.10<0.125 0.10 < 0.125

  • 0.20>0.125 0.20 > 0.125

  • 0.1375>0.125 0.1375 > 0.125

  • 0.12125<0.125 0.12125 < 0.125

  • 0.15>0.125 0.15 > 0.125

Thus, we have:

Values smaller than 18 \frac{1}{8} : 10% 10\% and 97800 \frac{97}{800} .

Values larger than 18 \frac{1}{8} : 20% 20\% , 1180 \frac{11}{80} , and 0.15 0.15 .

The correct grouping matches choice 1:
10%,97800<18 10\%, \frac{97}{800} < \frac{1}{8}
20%,1180,0.15>18 20\%, \frac{11}{80}, 0.15 > \frac{1}{8}

3

Final Answer

10%,97800<18 10\%,\frac{97}{800}<\frac{1}{8}

20%,1180,0.15>18 20\%,\frac{11}{80},0.15>\frac{1}{8}

Key Points to Remember

Essential concepts to master this topic
  • Convert First: Change all values to same format for easy comparison
  • Technique: Convert 18 \frac{1}{8} to 0.125 as benchmark decimal
  • Check: Verify 97800=0.12125<0.125 \frac{97}{800} = 0.12125 < 0.125

Common Mistakes

Avoid these frequent errors
  • Comparing fractions without converting to common form
    Don't compare 1180 \frac{11}{80} directly to 18 \frac{1}{8} = wrong grouping! Different denominators make direct comparison impossible. Always convert all values to decimals or find common denominators first.

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

Should I convert everything to fractions or decimals?

+

Decimals are usually easier! Convert 18=0.125 \frac{1}{8} = 0.125 as your benchmark, then convert percentages (10% = 0.10) and fractions (1180=0.1375 \frac{11}{80} = 0.1375 ) to decimals for simple comparison.

How do I convert fractions like 97/800 to decimals?

+

Simply divide the numerator by denominator: 97 ÷ 800 = 0.12125. Use long division or a calculator, then compare to your benchmark of 0.125.

What if two values are very close to 1/8?

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Look at all decimal places! For example, 97800=0.12125 \frac{97}{800} = 0.12125 vs 18=0.125 \frac{1}{8} = 0.125 . Since 0.12125 < 0.125, the fraction is smaller than 18 \frac{1}{8} .

Why can't I just look at the denominators to compare fractions?

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Because the numerators matter too! 1180 \frac{11}{80} has a bigger denominator than 18 \frac{1}{8} , but 11/80 = 0.1375 is actually larger than 1/8 = 0.125 because 11 is much bigger than the equivalent numerator.

How do I remember which group each value belongs to?

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Make a simple list: smaller than 0.125 (10%, 97800 \frac{97}{800} ) and larger than 0.125 (20%, 1180 \frac{11}{80} , 0.15). The benchmark 0.125 helps you see the pattern clearly!

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