Multiplying & Dividing Fractions

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Presentation transcript:

Multiplying & Dividing Fractions

Multiplying Fractions Multiplying fractions is easy. Top x top = top Bottom x bottom = bottom Shoot straight!

Multiplying by a whole number Make your whole number look like a fraction by putting it over 1. Top x top = top Bottom x bottom = bottom Shoot straight!

Multiplying Mixed Numbers Make your mixed numbers into improper fractions first.

Canceling Canceling is a special tool reserved just for fractions . Any factor anywhere on the top can be canceled with a matching factor on the bottom.

The magic of “OF” You can do many fraction problems in your head if you can remember that ‘multiply’ can be replaced by the word ‘of’ .

Dividing Fractions Dividing fractions is just doin’ the flip! Flip the fraction after the Multiply

Remember: Cancel if you can. Multiply straight across. Flip when you divide. Change whole numbers or mixed number to improper fractions.