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W8_PP_Mathematics_Comparing dissimilar and Similar Fraction.pptx

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W8_PP_Mathematics_Comparing dissimilar and Similar Fraction.pptx

  1. 1. Changing Dissimilar Fractions to Similar Fractions OBJECTIVE: Change dissimilar fractions to similar fractions.
  2. 2. 1 4 , 1 3 , 1 5 1 5 , 5 5 , 3 5 1 4 , 5 4 , 3 4 1 3 , 5 7 , 3 1
  3. 3. •EXAMPLE: 1 2 𝑎𝑛𝑑 1 4 2 = 2, 4, 6, 8, 10 4 = 4, 8, 12 , 16, 20
  4. 4. 1 2 𝑎𝑛𝑑 1 4 (They have 4 as their LCD) = 1 2 4 ÷ 2 x 1 = = 1 4 4 ÷ 4 x 1 =
  5. 5. We have changed 1 2 and 1 4 into 2 4 and 1 4 .
  6. 6. EXAMPLE: 3 10 , 7 15 𝑎𝑛𝑑 9 20 10 = 10, 20, 30, 40, 50, 60, 70, 80 15 = 15, 30, 45, 60, 75, 90, 105, 120 20 = 20, 40, 60, 80, 100, 120, 140
  7. 7. 3 10 , 7 15 𝑎𝑛𝑑 9 20 (They have 60 as their LCD) = 3 10 60 ÷ 10 x 3 = = 7 15 60 ÷ 15 x 7 = = 9 20 60 ÷ 20 x 9 =
  8. 8. We have changed 3 10 , 7 15 𝑎𝑛𝑑 9 20 into 18 60 , 28 60 and 27 60 .
  9. 9. Answer the activity on page 96, reinforcer A only.

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