Positive and Negative Fractions Lesson Slides: 7 Slides

7 Slides • 4 Questions

1

Adding Rational Numbers: Positive and Negative Fractions

LT: Students will be able to apply what they know of adding negative integers to adding negative fractions.

2

3

Never forget to simplify your answer

4

Multiple Choice

\frac{9}{12}\ +\ \frac{3}{12}\ =

1

12/2

2

1

3

12

4

1/2

5

Never forget to simplify your answer

6

Multiple Choice

-\frac{2}{7}+\ \left(-\frac{2}{3}\right)\ =

1

-21/20

2

21/20

3

20/21

4

-20/21

7

8

9

Multiple Choice

$\frac{5}{7}+\ \left(-\frac{9}{7}\right)\ =$

1

-4/7

2

-7/4

3

4/7

4

-7/4

10

To subtract a negative fraction, Use KFC

$\frac{1}{2}-\left(-\frac{3}{2}\right)=$
Keep the first number
$\frac{1}{2\ }+\left(-\frac{3}{2}\right)=$
Flip the operation
$\frac{1}{2}+\left(\frac{3}{2}\right)=$ $\frac{4}{2}=2$
Change the second number's sign
Then solve, simplify if needed

11

Multiple Choice

$\frac{11}{6}\ -\ \left(-\frac{7}{6}\right)\ =$

1

-3

2

1/3

3

-1/3

4

3

Adding Rational Numbers: Positive and Negative Fractions

LT: Students will be able to apply what they know of adding negative integers to adding negative fractions.

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