pre-algebra 3-1 rational numbers 3-1 rational numbers pre-algebra warm up warm up problem of the day...
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Pre-Algebra 3-1 Rational Numbers Problem of the Day An ice cream parlor has 6 flavors of ice cream. A dish with two scoops can have any two flavors, including the same flavor twice. How many different double-scoop combinations are possible? 21TRANSCRIPT
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Pre-Algebra
3-1 Rational Numbers
3-1 Rational Numbers
Pre-Algebra
Warm UpProblem of the DayLesson Presentation
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Pre-Algebra
3-1 Rational NumbersWarm UpDivide.
Pre-Algebra
3-1 Rational Numbers
12 24
34
16
1. 36 3 2. 144 6
3. 68 17 4. 345 115
5. 1024 64
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Pre-Algebra
3-1 Rational NumbersProblem of the Day
An ice cream parlor has 6 flavors of ice cream. A dish with two scoops can have any two flavors, including the same flavor twice. How many different double-scoop combinations are possible?
21
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Pre-Algebra
3-1 Rational NumbersLearn to write rational numbers in equivalent forms.
rational numberrelatively prime
Vocabulary
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Pre-Algebra
3-1 Rational Numbers
Decimals that terminate or repeat are rational numbers.
A rational number is any number that can be written as a fraction, d≠0.
Numerator nd Denominator
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Pre-Algebra
3-1 Rational Numbers
The goal of simplifying fractions is to make the numerator and the denominator relatively prime.
Relatively prime numbers have no common factors other than 1.
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Pre-Algebra
3-1 Rational NumbersSimplify.
105 GCF = ?
51055
21
5
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Pre-Algebra
3-1 Rational NumbersSimplify.
8016 GCF = ?
16801616
51
16
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Pre-Algebra
3-1 Rational NumbersSimplify.
2918- GCF = ?
2918
1
These two numbers are relatively prime!!!
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Pre-Algebra
3-1 Rational NumbersSimplify.
306 GCF = ?
63066
51
6
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Pre-Algebra
3-1 Rational NumbersSimplify.
34-17 GCF = ?
1734-1717
21
17
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Pre-Algebra
3-1 Rational Numbers
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Pre-Algebra
3-1 Rational Numbers
–0.8
Write the decimal as a fraction in simplest form.
Tenths108- GCF = ?
21028-
54
2
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Pre-Algebra
3-1 Rational Numbers
5.37
Write the decimal as a fraction in simplest form.
Hundredths
100375 GCF = ?
100375
1
5 and 37 are relatively prime!!
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Pre-Algebra
3-1 Rational Numbers
0.622
Thousandeths
1000622 GCF = ?
210002622
500311
2
Write the decimal as a fraction in simplest form.
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Pre-Algebra
3-1 Rational Numbers
8.75
Hundredths
100758 GCF = ?
2510025758
438
25
Write the decimal as a fraction in simplest form.
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Pre-Algebra
3-1 Rational Numbers
11 9
Write the fraction as a decimal.
1.222222…, a repeating decimal
= 1.2
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Pre-Algebra
3-1 Rational Numbers
7 20
Write the fraction as a decimal.
0.35, a terminating decimal
= 0.35
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Pre-Algebra
3-1 Rational Numbers
15 11
Write the fraction as a decimal.
1.363636…, a repeating decimal
= 1.36
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Pre-Algebra
3-1 Rational NumbersLesson Quiz: Part 1Simplify.
1. 2.
Write each decimal as a fraction in simplest form.3. 0.27 4. –0.625
5. Write as a decimal
18 42
3 7
15 21
5 7
27 100
–5 8
13 6 2.16
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Pre-Algebra
3-1 Rational Numbers
Tommy had 13 hits in 40 at bats for his baseball team. What is his batting average? (Batting average is the number of hits divided by the number of at bats, expressed as a decimal.)
Lesson Quiz: Part 2
6.
0.325
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Pre-Algebra
3-1 Rational Numbers
HomeworkPg 115;
1 – 49 odd58 – 63 all