adding and subtracting fractions and mixed numbers with like denominators
DESCRIPTION
Adding and Subtracting Fractions and Mixed Numbers with Like Denominators. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. 10. Adding Fractions with Like Denominators. +. =. 1. 2. - PowerPoint PPT PresentationTRANSCRIPT
+101
10110
1101
101
101
101
10110
1101
10110
1
=
101
101
101
101
10110
1
+62
61
+
63
61
61
6161
61
61
Step 2: The denominator remains the same.
Step 3: Simplify the sum, if necessary.
GCF: 3
Step 1: Add the numerators.
21
33÷ 2
1=
+
1 Whole
1 Whole
1 Whole
51
51
51
1 Whole
1 Whole
1 Whole
51
51
51
+
154
151
Step 1: Add the fractions. Regroup, if needed.
11
Step 2: Add the whole numbers.
Step 3: Use the GCF to simplify, If necessary.
1552
1 Whole 151
151
151
151
1511 Whole
31
151
151
151
151
151
1 Whole
1 Whole
GCF: 5
÷ =55
31
91
+
95
95
Step 1: Add the fractions. Regroup, if needed.
1
1Step 2: Add the whole numbers.
Step 3: Use the GCF to simplify, If necessary.
910
1 Whole
1 Whole
91
91
91
91
91
91
91
91
91
91
91
91
91
91
91
91
91
91
91
91
1 Whole
= 911
1 Whole
1 Whole
913
11
113
+118
5
7Step 1: Add the fractions. Regroup, if needed.
Step 2: Add the whole numbers.
Step 3: Use the GCF to simplify, If necessary.
43
12
121
+
5
Step 1: Add the fractions. Regroup, if needed.
Step 2: Add the whole numbers.
Step 3: Use the GCF to simplify, If necessary.
15
1266 ÷ =6
621GCF: 6
7
75
+79
4
10Step 1: Add the fractions. Regroup, if needed.
Step 2: Add the whole numbers.
Step 3: Use the GCF to simplify, If necessary.
72
1→ 72
81
- 81
81
81
81
81
81
81
-94
91
-
93
Step 2: The denominator remains the same.
Step 3: Simplify, if necessary.
GCF: 3
Step 1: Subtract the numerators.
33÷ 3
1=
91
919
191
91
91
919
1
31
-
1 Whole
1 Whole
1 Whole
1 Whole
71
71
71
71
71
71
1 Whole
1 Whole
-
125
121
Step 1: Subtract the fractions. Regroup, if needed.
21
Step 2: Subtract the whole numbers.
Step 3: Use the GCF to simplify, If necessary.
1241
1 Whole
1 Whole
31GCF: 4
÷ =44
31
121
121
121
121
1211 Whole
121
121
121
121
121
1 Whole
1 Whole
-
51
53
Step 1: Subtract the fractions. Regroup, if needed.
3
1Step 2: Subtract the whole numbers.
Step 3: Use the GCF to simplify, If necessary.
531
1 Whole
1 Whole
1 Whole 51
51
51
51
51
51
26 51
51
51
51
51
51
51
511 Whole
20
208
-207
15
17Step 1: Subtract the fractions. Regroup, if needed.
Step 2: Subtract the whole numbers.
Step 3: Use the GCF to simplify, If necessary.
258
6
61
-64
5
4Step 1: Subtract the fractions. Regroup, if needed.
Step 2: Subtract the whole numbers.
Step 3: Use the GCF to simplify, If necessary.
4
GCF: 222
32÷ =
8
83
-86
1
4Step 1: Subtract the fractions. Regroup, if needed.
Step 2: Subtract the whole numbers.
Step 3: Use the GCF to simplify, If necessary.
83
-1788
+9
GCF: 222÷ 4
3=