Do Now 2/10/11Do Now 2/10/11 Take out HW from last night.Take out HW from last night.

Punchline worksheets #57 & #58Punchline worksheets #57 & #58

Copy HW in your planner.Copy HW in your planner. Text page 185, #12-28 evens; #42-46 evensText page 185, #12-28 evens; #42-46 evens

In your notebook, In your notebook, comparecompare and and contrastcontrast the the figures below. figures below. (How are they the same? How are they different?)(How are they the same? How are they different?)

HomeworkHomework

““Why Aren’t Dragons Hungry on Weekends?”Why Aren’t Dragons Hungry on Weekends?”

THEY FEAST ON WEAK KNIGHTSTHEY FEAST ON WEAK KNIGHTS

““Why Did the Candle Fall in Love?”Why Did the Candle Fall in Love?”

HE MET THE PERFECT MATCHHE MET THE PERFECT MATCH

What Do You See?What Do You See?

10

215

3

30

6

50

10

5

1

20

4

Section 4.3 “EQUIVALENT FRACTIONS”Section 4.3 “EQUIVALENT FRACTIONS”

ObjectiveObjective

SWBAT write fractions in simplest form SWBAT write fractions in simplest form and write equivalent fractions.and write equivalent fractions.

EQUIVALENT FRACTIONS-EQUIVALENT FRACTIONS-multiplyingmultiplying or or dividingdividing the numerator the numerator and denominator of a fraction by the and denominator of a fraction by the SAME nonzero numberSAME nonzero number

4

1

2

2xx

xx 8

2== 4

1

3

3xx

xx 12

3== 4

1

5

5xx

xx 20

5==

16

4

5

5÷÷

÷÷80

20== 40

10

2

2÷÷

÷÷80

20==

Write 2 fractions that are equivalent to the Write 2 fractions that are equivalent to the given fraction.given fraction.

27

3

21

18

8

5

9

1270

30

54

6

63

54

42

36

7

6

16

10

24

15

40

25

10

2

5

1

The first of these fractions 1/5 is in The first of these fractions 1/5 is in SIMPLEST FORM because the numerator SIMPLEST FORM because the numerator and denominator have no common factors.and denominator have no common factors.

15

3

52

2

5

1

53

3

5

1

To SIMPLIFY fractions divide the numerator and denominator by common factors.

Simplifying Fractions Simplifying Fractions

18

12

332

322

== 3

2

When simplifying fractions, look for common When simplifying fractions, look for common factors in the numerator and denominator. Then factors in the numerator and denominator. Then divide by crossing them out. divide by crossing them out.

==

63

28

733

722

== 9

4==

Simplify the Following Fractions Simplify the Following Fractions

80

48

52222

32222

=5

3=

32

28

22222

722

=8

7=

Which Three Fractions Are Which Three Fractions Are Equivalent???Equivalent???

27

24,

42

36,9

8,

81

72

9

8

3333

33222

81

72

9

8

33

222

9

8

7

6

732

3322

42

36

9

8

333

3222

27

24

Which Three Fractions Are Which Three Fractions Are Equivalent???Equivalent???

3

2

532

522

30

20

5

3

55

53

25

15

5

3

555

553

125

75

5

3

552

532

50

30

50

30,

125

75,

25

15,

30

20

HomeworkHomework Text page 185, #12-28 evens; #42-46 evensText page 185, #12-28 evens; #42-46 evens

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