# Operations with Fractions

Created 3 years ago

Duration 0:12:17
157
Slide Content
1. ### Slide 1 - Operations with Fractions

• Multiplying | Dividing | Adding | Subtracting | [Subtracting with Borrowing]
2. ### Slide 2 - Review: Mixed Numbers & Improper Fractions

• A mixed number contains a whole number and a fraction, like
• An improper fraction has a numerator larger than the denominator, like
• To convert from mixed number to improper form, multiply the whole number by the denominator and add that number to the numerator.
• To convert from improper form to mixed number, divide the numerator by the denominator. The remainder becomes the new numerator and the quotient becomes the whole number.
3. ### Slide 3 - Whole Numbers to Fractions

• A whole number can be written as a fraction by writing a 1 in the denominator
4. ### Slide 5 - Multiplying Fractions

• When multiplying fractions, use improper fraction form
• Multiply across and simplify
5. ### Slide 7 - Dividing Fractions

• When dividing fractions, use improper fraction form
• Flip the second fraction, multiply across and simplify
6. ### Slide 9 - Cross Simplification

• Use when multiplying
• Use when dividing AFTER flipping the second fraction
7. ### Slide 11 - Adding Fractions

• When adding fractions, use mixed number or improper fraction form
• Find a common denominator and “scale”.