Add & subtract mixed numbers


A mixed number has a part that is a whole number and a part that is a fraction.

= 1 34


1316+

Shortcut to find the LCD.

Will 3 divide into 6? Use 6 as your LCD.

6

6

103


1316+

Now find theequivalent

fractions for1/3 & 1/6.

6

6x 1 =

x 2 =

Ask what do you multiply 3 by to get 6and what do you multiply 6 by to get 6.

103


1316+

You are writing equivalent

fractions, so fill in your Giant One.

6

6x 1 =

x 2 =x 1 =

x 2 =10

3


1316+

6

6x 1 =

x 2 =x 1 =

x 2 =10

3Now multiply

across.

2

1


1316+

6

6x 1 =

x 2 =x 1 =

x 2 =10

3

2

1Add

numerators.

36


1316+

6

6x 1 =

x 2 =x 1 =

x 2 =10

3

2

1

36

Addwhole

numbers.

13


Simplify Your Answer

3613 3

3 = 13 12

÷÷


4513+

Find the least common

denominator for5 and 3

15

15

112


4513+

Ask yourselfwhat you

multiply thedenominatorby to get 15.

15

15x 5 =

x 3 =11

2


4513+

Fill in your giant one.

15

15 x 5 =

x 3 = x 5 =

x 3 =

2

11


4513+

15

15 x 5 =

x 3 = x 5 =

x 3 =

2

11 Multiplystraight across.

12

5


4513+

15

15 x 5 =

x 3 = x 5 =

x 3 =

2

11 12

5Add the

Numerators.Denominator

stays the same.

1715


4513+

15

15 x 5 =

x 3 = x 5 =

x 3 =

2

11 12

5

1715

15)171

152

215

IMPROPER


4513+

15

15 x 5 =

x 3 = x 5 =

x 3 =

2

11 12

5

1715

15)171

152

215

IMPROPER

Add Your 1 to Your Whole Numbers1


4513+

15

15 x 5 =

x 3 = x 5 =

x 3 =

2

11 12

5

1715

15)171

152

215

IMPROPER

Put remainder fraction by answer1

21514


5658+

24

24 x 3=

x 4 = x 3=

x 4 =

15

20

3524

24

324)35

1

11

1124

24

1

28 1124

IMPROPER


3513-

15

15 x 5=

x 3 = x 5=

x 3 =

5

9

415

82

6


3413-

12

12 x 4=

x 3 = x 4=

x 3 =

4

9

512

53

2


FRACTION REVIEWTake out your study guide


5658+

24

24x 3 =

x 4 =x 3 =

x 4 =

15

20

3524

24

3 24)351

11

1124

24

1

28 1124

#13

IMPROPER

Add & subtract mixed numbers

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