 # 5.1 Rational Numbers 90 Ex: ) ) 32

## Presentation on theme: "5.1 Rational Numbers 90 Ex: ) ) 32"— Presentation transcript:

5.1 Rational Numbers 90 Ex: 0.6 -3.9 -15 2.) 0.9 3.) 32
Rational Number- A number that can be written as a fraction -15 Ex: 0.6 90 -3.9 Write two more examples of rational numbers. Show that the number is rational by writing it as a quotient of two integers. 1.) 2.) 0.9 3.) 32

 Real Number- the set of rational and irrational numbers
Irrational Numbers- Numbers that cannot be written as a fraction (non-repeating, non-terminating decimals, square root of a non-perfect  square) Ex. Real Number- the set of rational and irrational  numbers The Venn diagram shows the relationship among all real numbers

Tell if the number is rational or irrational.
2.) 1.) 3.) 4.)

Write each fraction as a decimal. Use the equivalent  fraction method.
2.) 1.) Write each fraction or mixed number as a decimal. Use the  division method. Tell if it is repeating or terminating 3.) 4.) 5.) 6.)

What pattern do you notice?
Write each decimal as a fraction in lowest terms. 2.) 1.6 1.) 0.65 3.) Sometimes you can find a pattern. Write each fraction as a decimal. b.) c.) d.) a.) What pattern do you notice?

Writing a repeating decimal as a fraction.
1.) Write as a fraction. Set the variable equal to n Multiply each side of the  equation by 100 Subtract the same value form  each side Solve 2.) Write as a fraction.

To order fractions and decimals, you must convert the  fractions to decimals and then compare.
Write in order from least to greatest. Be sure to change each fraction to  a decimal first. 1.) 2.)

Demonstrate Understanding
Write the fraction or mixed number as a decimal. 1.) 2.) Write the decimal as a fraction or mixed number in lowest terms. 3.) 4.) 0.7 5.) Write the numbers in order from least to greatest. 6.) Write irrational or rational. 7.) 8.)