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Adding fractions. Convert all mixed numbers into improper fractions Find lowest common denominator Add numerators and leave denominators the same Reduce to lowest terms. STEPS EXAMPLE. Subtracting fractions. - PowerPoint PPT Presentation
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Adding fractions
STEPS EXAMPLE
• Convert all mixed numbers into improper fractions
• Find lowest common denominator
• Add numerators and leave denominators the same
• Reduce to lowest terms
6
17
6
436
15
6
28
6
15
32
1426
32
3
24
Subtracting fractions
STEPS EXAMPLE
• Convert all mixed numbers into improper fractions
• Find lowest common denominator
• Subtract numerators, leave the denominators the same
• Reduce (if you have to)
20
920
55
20
64
54
511
54
1644
32
5
13
Multiplying fractions
STEPS EXAMPLE
- Convert all mixed numbers into improper fractions
- Multiply numerators
- Multiply denominators
- Reduce to lowest terms
32
63
32
1028
17
4
68
12
4
21
Dividing fractions
STEPS EXAMPLE
• Convert all mixed numbers into improper fractions
• Convert division into multiplication and recopy the second fraction upside down (multiply by reciprocal)
• Multiply Numerators
• Multiply denominators
• Reduce to lowest terms
64
201
64
8416
6
4
146
16
4
146
42
4
23
By Darci And Jon
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