The basic property of fractions

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Presentation transcript:

The basic property of fractions

Review Use fractions to express the quotient Fill in the blanks

Paper folding Fold , , respectively with three circular sheets of the same size , then colour in the figures.

Thinking What is the relationship of these fractions? Their numerator and denominator are different, but they are equivalent fractions.

Thinking From left to right, can you describe a regular pattern between them? ×4 ×2

Thinking From right to left, can you describe a regular pattern between them? ÷4 ÷2

Thinking Indicate the shaded part in the following figures with fractions. What is the relationship between these fractions?

Thinking Fill in the bracket with an integer. Explain the reason for your choice.

Judge Judge if the following equations are true. Can you explain why?

Describe the basic property of fractions A fraction remains the same value, when both its numerator and denominator are multiplied or divided by the same non-zero number.

Basic exercise Fill in the blanks

Basic exercise Fill in the bracket with proper number. Explain the reason.

Basic exercise Choose the correct statement from the following equations ( )

Application Write down 3 fractions with the value of

Application Coverting and to equivalent fractions with the a denominator of 15

Summary What have we learned today? The basic property of fractions Convert a fraction to equivalent fractions

Challenge When 2 is added to the numerator, what number should be added to the denominator so that the fraction remains the same value? 5

Challenge 10 10