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# Divide: . 1.) 2.75÷2.5= Round to the nearest thousandth: 2.) 456. 4584 - PowerPoint PPT Presentation

Warm Up # 3. Divide: . 1.) 2.75÷2.5= Round to the nearest thousandth: 2.) 456. 4584 Simplify (CLT): -7 + 2x - 3 - 6x + 3 +x. Quiz on Friday . Chapter 2 LTs # 1 – 11 AND Chapter 1 stuff!. Add Fractions. Learning Targets. LT #10 : I can add fractions.

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Divide: . 1.) 2.75÷2.5= Round to the nearest thousandth: 2.) 456. 4584

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#### Presentation Transcript

Warm Up # 3

• Divide: .

• 1.) 2.75÷2.5=

• Round to the nearest thousandth:

• 2.) 456. 4584

• Simplify (CLT): -7 + 2x - 3 - 6x + 3 +x

### Learning Targets

• LT #10: I can add fractions.

Before: 1 2 3After: 1 2 3

1 = always 2 = sometimes 3 = not yet

I have these questions:

7NS1.2

### WHAT IS THE ANSWER TO PLUS ?

+

=

What do you notice about the numerators?

8

12

3

12

What do you notice about the denominators?

+

11

12

The denominator STAYS THE SAME!

2

6

3

6

+

The denominator STAYS THE SAME!

6

5

4

7

+

9

9

2

1

9

+

Write sum of numerators over common denominator of 9.

4

7

4

7

+

=

9

9

9

11

=

9

Rewrite improper fraction

as a mixed number.

=

7

2

9

1.

+

10

10

10

2

3

5

2.

+

9

9

9

1

4

2

3.

1

+

5

5

5

2

5

4.

1

+

7

7

Find the sum.

3 7

–3 7

can be written as .

6 7

–3

7

+

6 + (–3) 7

3 7

=

6 7

3 7

+ –

### LETS SAY I WANT TO ADD AND ?

HOW MUCH IS THAT?

### IT’S REALLY HARD TO KNOW HOW MUCH THAT IS!

SO BEFORE YOU TRY TO ADD THEM, MAKE IT SO BOTH FRACTIONS HAVE AN EQUAL NUMBER PARTS.

### WHAT I MEAN BY EQUAL PARTS, IS MAKE IT SO BOTH FRACTIONS ARE CUT INTO THE SAME NUMBER OF PIECES.

3 PIECES 2 PIECES

### WHAT IS THE ANSWER TO PLUS ?

Giant One

(horizontal)

2

6

1

3

• 2

• 2

(vertical)

3

6

• 3

• 3

1

2

+

5

6

That's all Folks!

2 3

+

6 6

2

Add Fractions With The Same Denominator

LT

#10

6

3

The numerators

6

+

5

2 + 3

6

The denominator

stays the same!

### One-Third Plus Two-Fourths

LT # 10

Giant One

4

12

1

3

•4

• 4

=

6

12

2

4

• 3

• 3

=

+

+

______________

5

6

10÷

12÷

2

2

LT #10

• Find a common denominator

12

4

3

 _ =

15

5

 _ =

3

2

5

10

 _ =

3) Keep the denominators the same.

+

3

 _ =

5

15

22

4) If possible reduce or simplify. Change improperfraction to mixed number.

1

15

15

15)

7

22

15

7

LT #10

11

1

If Improper: Change to mixed number.

20

24

5

4

_ =

24

6

_ =

24

4

24

15

5

3

24)

 =

35

3

27

+

24

8

 =

3

35

+

11

11

11

1

24

24

24

And add the mixed number to the whole number part of the answer.

28

IMPROPER

### Assignment:

• Topic: Extra Review Problems WS. # 1- 5

• Rewrite vertically on binder paper.

• Show GIANT one and all work!

• If the answer is improper, rewrite as mixed number.

• Use your LT notes as examples.