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Glencoe Math: Course 2, Volume 1 View details

2. Compare and Order Rational Numbers

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Exercise 6 Page 275

Try to rewrite all of the values in the same form before ordering them.

{19 %, 15, 0.23 }

Practice makes perfect

Let's approach ordering the given set from least to greatest one number at a time.

First Value

First, we have 0.23. It is in decimal form, we do not have to rewrite this number. We will rewrite the other numbers as decimals to order them. 0.23

Second Value

Next, we have 19 %. Recall that we can rewrite percent as a decimal. Let's take a look.

19 %

WriteDec

Write as a decimal

0.19

Next, we can compare this number to 0.23. 19 % < 0.23 ⇔ 19 % < 0.23

Third Value

Let's rewrite the third value, 15.

1/5

ExpandFrac

a/b=a * 20/b * 20

1* 20/5* 20

Multiply

20/100

WriteDec

Write as a decimal

0.2

In this form, we can compare this number to the other two. 0.19 < 0.2 < 0.23 ⇕ 19 % < 15 < 0.23

Combining the Numbers

Now, we can write the set in order from least to greatest. {19 %, 15, 0.23 }

Subchapter links

Guided Practice p.274

Independent Practice p.275-276

H.O.T. Problems p.276

Standardized Test Practice p.276-278

Extra Practice p.277

Common Core Review p.278

Exercise 6 Page 275

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Practice exercises

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First Value

Second Value

Third Value

Combining the Numbers