little italy - Effingham County Schools

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Transcript little italy - Effingham County Schools

Fraction Division
Opposite of Multiplication
The opposite number:
• Invert
• Called the reciprocal
4
• 3
invert to make
4
3
• You simply flipped your fraction
To Divide
• Invert the
second number
• Multiply
2 3 2 4 8
   
5 4 5 3 15
Keep It. Change It. Flip It.
Steps
• Change Whole numbers and mixed numbers to
improper fractions
• Keep the first fraction
• Change the division symbol to multiplication
• Invert or flip the second fraction (the divisor)
Multiply numerator by numerator and
denominator by denominator.
Examples
•
1
2
4
1 2

4 1
1 1

4 2
1 1 1
 
4 2 8
•
3
1
2
4
5
3 11

4 5
3 5

4 11
3 5 15
 
4 11 44
Your Turn!
Keep It. Change It. Flip It.
Keep It. Change It. Flip It.
Keep It. Change It. Flip It.
Keep It. Change It. Flip It.