Add & subtract mixed numbers

A mixed number has a part that
is a whole number and a part
that is a fraction.
copyright©amberpasillas2010
= 1 34

1
3
16
+
Shortcut to
find the LCD.
Will 3 divide into 6?
Use 6 as
your LCD.
6
6
10
3

1
3
16
10
3
+
Now find the
equivalent
fractions for
1/3 & 1/6.
6
x 2 =
x 1 =6
Ask what do you multiply 3 by to get 6
and what do you multiply 6 by to get 6.

1
3
10 x 2 =
3
16
+
You are writing
equivalent
fractions, so fill in
your Giant One.
6
x 2 =
x 1 =
x 1 =6

1
3
10 x 2 =
3
16
+
6
x 2 =
x 1 =
x 1 =6
Now multiply
across.
2
1

2
1
1
3
10 x 2 =
3
16
+
6
x 2 =
x 1 =
x 1 =6
Add
numerators.
3
6

2
1
3
6
1
3
10 x 2 =
3
16
+
6
x 2 =
x 1 =
x 1 =6
Add
whole
numbers.
13

Simplify Your Answer
3
13 6 33
= 13 1
2
÷
÷

4
5
13
+
Find the least
common
denominator for
5 and 3
15
15
11
2

4
5
x 3 = 11
2
13
+
Ask yourself
what you
multiply the
denominator
by to get 15.
15
x 5 =15

4
5
x 3 =
2
13
+
Fill in your
giant one.
15
x 3 =
x 5 =
x 5 =15
11

11 Multiply
4
5
x 3 =
2
13
+
15
x 3 =
x 5 =
x 5 =15
straight
across.
12
5

11 12
5
4
5
x 3 =
2
13
+
15
x 3 =
x 5 =
x 5 =15
Add the
Numerators.
Denominator
stays the same.
17
15

11 12
5
17
15
4
5
x 3 =
2
13
+
15
x 3 =
x 5 =
x 5 =15
1
15
2
15)17
2
15
IMPROPER

1 Add Your 1 to Your Whole Numbers
11 12
5
17
15
4
5
x 3 =
2
13
+
15
x 3 =
x 5 =
x 5 =15
1
15
2
15)17
2
15
IMPROPER

1 Put remainder fraction by answer
11 12
5
17
15
4
5
x 3 =
2
13
+
15
x 3 =
x 5 =
x 5 =15
1
15
2
15)17
2
15
IMPROPER
2
1415

20
11
24
24
24
3 15
24)35
5
6
58
+
x 4 =
24
x 4 =
x 3=
x 3=24
35
24
1
11
1
28 11
24
IMPROPER

x 3 =
x 3 =
x 5=
3
5
13-
9
15
5
x 5= 15
4
15
8
2
6

x 3 =
x 3 =
x 4=
9
4
3
4
13-
12
x 4= 12
5
12
5
3
2

FRACTION REVIEW
Take out your study guide

x 4 =
20
11
24
24
24
x 4 =
3 x 3 =
15
24)35
5
6
58+
24
x 3 =24
35
24
1
11
1
28 11
24
#13
IMPROPER

Add & subtract mixed numbers

More Related Content

What's hot

Viewers also liked

Similar to Add & subtract mixed numbers

More from angelwatler

Add & subtract mixed numbers