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Fractions

Fractions. Revision. What fraction of this shape is yellow?. How many blocks would you need to shade in so that is shaded?. Which of the following fractions is not equivalent to. a:. b:. c:. d:. If we cancel the fraction 24/30 to its lowest terms, what is the result?. a:. b:. c:.

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Fractions

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  1. Fractions Revision

  2. What fraction of this shape is yellow?

  3. How many blocks would you need to shade in so that is shaded?

  4. Which of the following fractions is not equivalent to a: b: c: d:

  5. If we cancel the fraction 24/30 to its lowest terms, what is the result? a: b: c: d:

  6. Put the following fractions into numerical order, SMALLEST FIRST: a: c: d: b: < >

  7. b: 250 ml D: 7500 ml a: 75 ml c: 750 ml What is three quarters of a litre, in millilitres?

  8. Out of a class of 24 people, 21 are present. What fraction are absent, in its lowest form? a: c: d: b:

  9. Calculate the value of: a: b: c: d: +

  10. What is the value of: a: b: c: d: subtraction

  11. Multiplying Fractions

  12. HALF of HALF How much is ½ of ½ a pizza? HALF HALF OF HALF IS ¼

  13. OF means x ½ of ½ = ¼ ½ x ½ = ¼ can you think of a rule to MULTIPLY FRACTIONS?

  14. can you think of a rule to MULTIPLY FRACTIONS? of

  15. More Examples…can you write the method? Discuss with the person next to you and write the method!

  16. Steps to multiply 2 or more fractions • Step 1: Simplify fractions by cancelling a numerator & a denominator • Step 2: Multiply the numerators • Step 3: Multiply the denominators • Step 4: Simplify the fraction further if possible

  17. EXAMPLES 1 6 7 5 6 1x5 7x1 5 7 x = = 1 1 4 5 3 8 1x3 5x2 3 10 x = = 2 2 4 9 6 7 4x2 3x7 8 21 x = = 3

  18. 1 1 EXAMPLES 2 6_ 10 5 9 1x1 1x3 1 3 x = = 1 2 3 1 4_ 15 3 8 1 1x1 5x2 1 10 x = = 5 2 1 3 2 21 9 6 35 1x2 1x5 2 5 x = = 3 5 1

  19. Multiplying 3 Fractions 1 4 1 6 3 3

  20. Multiplying 3 Fractions 1 2 1 3 5 3 3 1

  21. Fraction by whole number 3 1 3 1

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