Transcript Document

Adding Mixed Numbers
Add. Write the answer in simplest form.
51+3 5
8
6
+
5
1x3
8x3
3
24
3
5x4
6x4
20
24
23
24
8
= 8 23
24
Course 2
Add the integers and add
the fractions. Find a
common denominator of
24.
Add the integers and
add the fractions.
Adding Mixed Numbers
Add. Write the answer in simplest form.
74+2 5
9
7
+
7
4x7
9x7
28
63
2
5x9
7x9
45
63
73
63
9
= 10 10
63
Course 2
Add the integers and add the
fractions.
Find a common denominator.
In this problem you must
change the improper fraction to
a mixed number -1 and 10/63. Carry the 1 to
the whole numbers to get final
answer.
Add. Write the answer in simplest form.
A. 7 4 +10 2
5
5
7 4 + 10 2 = 17 + 6
5
5
5
= 17 + 1 1
5
= 18 1
5
Course 2
Add the integers and
add the fractions.
Rewrite the improper
fraction as a mixed
number.
Insert Lesson Title Here
Subtracting Mixed Numbers
Subtract. Write the answer in simplest form.
2
B. 12 8 – 8
3
9
128 – 8 2 = 12 8 – 8 6
9
9
9
3
= 4+ 2
9
=42
9
Find a common
denominator.
Subtract integers and
subtract fractions.
Add.
Sometimes when you subtract mixed numbers,
the fraction portion of the first number is less than
the fraction portion of the second number. In thes
cases, you must regroup before subtracting.
REGROUPING MIXED NUMBERS
WORDS
Regroup.
Rewrite 1 as a fraction with
a common denominator.
Add.
Course 2
NUMBERS
1
7 =6+1+
8
8
=6+ +
8
=69
8
1
8
1
8
Subtracting Mixed Numbers
Subtract. Write the answer in simplest form.
C. 17 1– 12 3
8
8
9–
3
1
3
16
12
17 – 12 =
8
8
8
8
=4+6
8
3
6
4
=4 =
4
8
1 = 16+ 8+ 1
Regroup 17
.
8
8 8
Subtract integers and
subtract fractions.
Add and simplify.
Subtract. Write the answer in simplest form.
C. 14 1– 10 3
4
4
5–
3
1
3
13
10
14 – 10 =
4
4
4
4
=3+2
4
1
2
3
=3 =
2
4
1 = 13+ 4+ 1
Regroup 14
.
4
4 4
Subtract integers and
subtract fractions.
Add and simplify.
Insert Lesson Title Here
Lesson Quiz
Add or subtract. Write each answer in
simplest form.
1.
2.
3.
4.
5
1
1
1012
5 +5
4
6
9 2 + 10 7 20 1
4
12
3
1
77 – 2 3 58
4
8
10 2 – 4 5 5 7
9
6 18
1
5. A single roll of wallpaper unrolls to 15 2 yards
you hang 13 7yards from the roll. How much
8
wallpaper remains? 1 5 yards
8