1. The basic property of fractions

2. Review
Use fractions to express the quotient
Fill in the blanks

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

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

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

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

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

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

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

10. 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.

11. Basic exercise
Fill in the blanks

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

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

14. Application
Write down 3 fractions with the value of

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

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

17. 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

18. Challenge 10 10