CONFIDENTIAL1 MIXED NUMBERS AND IMPROPER FRACTIONS

CONFIDENTIAL 1

MIXED NUMBERS AND IMPROPER FRACTIONS

CONFIDENTIAL 2

PRE-REQUISITE SKILL

• DIVIDE AND ROUND TO THE NEAREST TENTH

• 8 ÷ 3 =

• 19 ÷ 6 =

• 52 ÷ 8 =

• 67 ÷ 9 =

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MIXED NUMBERS

• A Mixed Number indicates the sum of a whole number and a fraction. A number like 11/3 is an example of a mixed number.

• 1 1/3 = 1 + 1/3

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Improper Fraction

• If the numerator is greater than the denominator, then the fractions are called improper fractions.

• Mixed Numbers can written as improper fraction.

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The number below shows the number line show 2 groups of fractions.

0 1 2 3 4 5 6 7 8 9 10 11 12

6 6 6 6 6 6 6 6 6 6 6 6

The numerators are less than the denominators

The numerators are greater than the denominators

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MIXED NUMBERS AS IMPROPER FRACTIONS

• Draw a model for 4 1/6, then write 4 1 as

6

Improper fractions.

Since the mixed number is greater than 4, draw 5 models that are divided into 6 equal sections to show sixths. Then shade four wholes and one sixth.

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Write 4 1 as an improper fraction

6• There are twenty-five 1/6 s. So, 4 1/6 can be written as 25

6

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Now your turn!

• Draw a model for 3 3/8. Then write 3 3/8 as an improper fraction.

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Mixed Numbers as Improper Fractions

• Multiply the whole number and the denominator. Then add the numerator

• 6 ½ = (6 x 2) + 1 = 13

2 2

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Example – 2

• Write 3 ¼ as improper fractions.

• i.e 3 ¼ = (3 x 4) + 1 = 13

4 4

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Your Turn!!!

• Write each mixed number as an improper fraction.

• 4 3/8

• 4 ¾

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Improper Fractions as Mixed Fractions

• Improper fractions can also be written as mixed numbers. Divide the numerator by the denominator.

• Example: 18

4

Use the remainder as the numerator of the fraction

1818

16 16

22

44

44

4

24

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EXAMPLE – 2

• Write 17 into mixed fractions

8

Divide 17/8

1717

1616

11

88

22

8

12

8

17

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Now your turn

• Write each improper fraction as a mixed fraction.

• 19

5

. 28

17

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BREAK

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PRACTICE PROBLEMS

I Draw a model for 9/4. Write the fraction as mixed fraction.

II Draw a model for each fraction and write the mixed number as an improper fraction.

i) 4 1/8 ii) 3 ¾

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MORE PRACTICE ROBLEMS

III Write each mixed number as an improper fraction

i) 5 1/8 ii) 2 7/8 iii) 1 5/6 iv) 3 1/3 v) 9 ¼

IV Write each improper fraction as a mixed number

i) 17/8 ii) 37/3 iii) 13/3 iv) 28/16 v) 78/8

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Assignments

• Mr. G walked 59/ 8 meters. Write the distance Mr. G walked as mixed number.

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Assignments

• The width of a piece of paper is 17 ½ inches. Write 17 ½ as an improper fraction.

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Do these problems

• City W is 4 5/4 meters long. Write the distance as mixed numbers.

• Mr. Stephen said to Miss Mary that he wants 3 ¾ spoons of sugar for a tea. Represent 3 ¾ as improper fractions

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Review

• A mixed number indicates the sum of a whole number and a fraction

• If the numerator is greater than the denominator, then the fraction is called improper fraction.

• To convert a mixed number into improper fraction, multiply the whole number and denominator and to the product add the numerator.

• To convert an improper fraction into a mixed fraction, divide the numerator by the denominator and use the remainder as the numerator of the fraction.

CONFIDENTIAL 23

THAT’S ALL ABOUT THAT’S ALL ABOUT MIXED NUMBERS AND MIXED NUMBERS AND IMPROPER FRACTIONSIMPROPER FRACTIONS