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© 2007 M. Tallman
© 2007 M. Tallman
151
151
+
51
51
51
31
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
151
© 2007 M. Tallman
+
=
41
61
61
121
121
121
121121
12112
1
121
121
121
121
121
12112
1
© 2007 M. Tallman
+
43
61
+
1211
Step 1: Find the LCD of the fractions.
Step 2: Rename the fractions using the LCD.
Step 3: Add the numerators. Denominator remains.Step 4: Simplify, if necessary.
41
41
41
61
112
112
112
112
112
112
112
112
112
112
112
33× 12
9=
22× 12
2=
LCD: 12
112
112
112
112
112
112
112
112
112
112
112
© 2007 M. Tallman
+
31
91
+
94
Step 1: Find the LCD of the fractions.
Step 2: Rename the fractions using the LCD.
Step 3: Add the numerators. Denominator remains.Step 4: Simplify, if necessary.
33× 9
3=
LCD: 9
31
91
91
919
1
91
91
919
1
© 2007 M. Tallman
+
52
21
+
109
Step 1: Find the LCD of the fractions.
Step 2: Rename the fractions using the LCD.
Step 3: Add the numerators. Denominator remains.Step 4: Simplify, if necessary.
22× 10
4=
55× 10
5=
LCD: 105
151
21
101
101
101
101
101
101
101
101
101
101
101
101
101
101
101
101
101
101
© 2007 M. Tallman
+
21
61
+
64
Step 1: Find the LCD of the fractions.
Step 2: Rename the fractions using the LCD.
Step 3: Add the numerators. Denominator remains.Step 4: Simplify, if necessary.
33× 6
3=
LCD: 6
21
61
61
61
61
61
GCF: 2
22÷ 3
2=
61
61
61
31
31
© 2007 M. Tallman
61
61
61
61
+
21
32
+
67
Step 1: Find the LCD of the fractions.
Step 2: Rename the fractions using the LCD.
Step 3: Add the numerators. Denominator remains.Step 4: Simplify, if necessary.
33× 6
3=
22× 6
4=
LCD: 6
31
31
21
61
61
61
61
61
61
61
61
61
61
161=
1 Whole
© 2007 M. Tallman
Step 1: Find the LCD of the fractions.
Step 2: Rename the fractions using the LCD.
Step 3: Add the numerators. Denominator remains.
Step 4: Simplify, if necessary.
4
63
+
129GCF: 3
33÷
43=
133×
123=
22×
126=
LCD: 12
© 2007 M. Tallman
Step 1: Find the LCD of the fractions.
Step 2: Rename the fractions using the LCD.
Step 3: Add the numerators. Denominator remains.
Step 4: Simplify, if necessary.
3
72
+
2113
177×
217=
33×
216=
LCD: 21
© 2007 M. Tallman
Step 1: Find the LCD of the fractions.
Step 2: Rename the fractions using the LCD.
Step 3: Add the numerators. Denominator remains.
Step 4: Simplify, if necessary.
9
31
+
97
4
33×
93=
LCD: 9
© 2007 M. Tallman
Step 1: Find the LCD of the fractions.
Step 2: Rename the fractions using the LCD.
Step 3: Add the numerators. Denominator remains.
Step 4: Simplify, if necessary.
8
63
+
2415GCF: 3
33÷
85=
133×
243=
44×
2412=
LCD: 24
© 2007 M. Tallman
Step 1: Find the LCD of the fractions.
Step 2: Rename the fractions using the LCD.
Step 3: Add the numerators. Denominator remains.
Step 4: Simplify, if necessary.
3
54
+
1522
157=
255×
1510=
33×
1512=
LCD: 15
1
