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Fractions        N28


12 balls are divided into 2 groups.
There are 6 balls in each group.
Half of 12 is 6.

We write ½ of 12 = 6

We work 12 ÷ 2 = 6
How many
 in each
 group?




           12 balls are divided into 4 groups.
           There are 3 balls in each group.
           One quarter of 12 is 3.

           We write ¼of 12 = 3

           We work 12 ÷ 4 = 3
More examples:
   Pay
attention!
             Example 1:

             ¾ of 12 = 9        12 ÷ 4 = 3
                                3x3=9

             Example 2:

             ⅜ of 16 = 6        16 ÷ 8 = 2
                                2x3=6

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Book 4: N28 Fractions

  • 1. Fractions N28 12 balls are divided into 2 groups. There are 6 balls in each group. Half of 12 is 6. We write ½ of 12 = 6 We work 12 ÷ 2 = 6
  • 2. How many in each group? 12 balls are divided into 4 groups. There are 3 balls in each group. One quarter of 12 is 3. We write ¼of 12 = 3 We work 12 ÷ 4 = 3
  • 3. More examples: Pay attention! Example 1: ¾ of 12 = 9 12 ÷ 4 = 3 3x3=9 Example 2: ⅜ of 16 = 6 16 ÷ 8 = 2 2x3=6