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