Fractions Fractions Part of a whole numerator 1

Fractions

Fractions Part of a whole numerator 1 denominator 3 Out of Divided by

Name that fraction!

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Color the fraction!

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Equivalent Fractions Equivalent means equal. Watch this video on equivalent fractions. http: //www. khanacademy. org/math/arithmeti c/fractions/v/equivalent-fractions

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Pizza 3/4 6/8 9/12

Multiply by 1 • 5 x 1= 5 • 235 x 1 = 235 • 2/3 x 1 = 2/3 • ax 1= a

What is 1? •

Rasing Fractions • • •

Rasing Fractions • A man walks into the pizza store and orders a medium pizza. • The clerk asks “ Would you like that cut in 8 pieces or 6? ” • The man replied “ Make it 6. I don’t think I can eat 8. ”

Rasing Fractions • To raise fractions make the denominator larger. • Multiply numerator and denominator (top and bottom) of the fraction by the same number. • This is the same thing as multiplying by 1.

Rasing Fractions • Multiply numerator and denominator (top and bottom) of the fraction by the same number. • This is the same thing as multiplying by 1.

Rasing Fractions • Raise 3/8 to 56 ths. • Multiply numerator and denominator (top and bottom) of the fraction by the same number.

Rasing Fractions • Raise 3/8 to 56 ths. • Multiply numerator and denominator (top and bottom) of the fraction by the same number.

Reducing Fractions • Opposite of raising. • Make the denominator smaller. • Divide numerator and denominator by the same number.

Reducing Fractions • Might take more than one step. • More than one way. • Divide numerator and denominator by the same number.

Reducing Fractions • Divide numerator and denominator by the same number.

Reducing Fractions • Divide numerator and denominator by the same number.

Proper and Improper • An improper fraction has a numerator larger than the denominator. • A proper fration has a numerator smaller than the denominator.

Mixed vs. Improper • A mixed number has a whole and fraction part. • A mixednumber can be written as an improper and visa versa.

Work this on paper. • We have 5 full crates of apples and one crate with only 7 apples. The full crates contain 30 apples. • How many apples altogether?

Work this on paper. • We have 5 full crates of apples and one crate with only 7 apples. The full crates contain 30 apples. • How many apples altogether? • 157 apples. • How did you get the answer?

Mixed to Improper. • You multiplied the 5 times 30 and added the 7 • To change a mixed number to improper, multiply the denominator by the whole part and add the numerator. Keep the denominator the same.

Mixed to improper • Try some.

Mixed to improper • Try some.

Try this on paper. • We have 135 pencils and boxes that hold 12 each. • How many full boxes? How many loose pencils? • How did you get your answer?

Try this on paper. • We have 135 pencils and boxes that hold 12 each. • How many full boxes? 11 How many loose pencils? 3 • How did you get your answer? • Divided 135 by 12. The remainder was the left over. • 135/12 = 11 3/12

Improper to Mixed • Divide.

Try these. • • •

Answers • • •