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Introduction to Fractions

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Introduction to Fractions Kristi Walker 4th Grade How many tenths are in a fifth? 2 1/5 1/10 1/10 How many tenths are in a ... – PowerPoint PPT presentation

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Title: Introduction to Fractions


1
Introduction to Fractions
  • Kristi Walker
    4th Grade

2
Vocabulary
  • Fraction
  • Numerator
  • Denominator

3
Fraction
  • A part of a whole number.
  • Example 1/2

4
Denominator
  • In a fraction, the denominator is the number
    below the line. It shows how many equal parts the
    whole is divided into.
  • Example 2/3
  • The denominator is 3.

5
Numerator
  • In a fraction, the numerator is the number above
    the line. It shows how many parts of the
    denominator are taken.
  • Example 2/3
  • The numerator is 2.

6
Parts of a Fraction
3
the number of parts
4
the whole
7
Parts of a Fraction
3
numerator
4
denominator
8
Which number is circled?
3
4
denominator
9
Which number is circled?
3
numerator
4
10
What fraction of the balls are red?
3
4
11
What fraction of the balls are red?
1
4
12
What fraction of the balls are red?
1
6
13
What fraction of the balls are red?
4
6
14
What fraction of the rectangle is red?
4
6
15
What fraction of the rectangle is red?
2
6
16
What fraction of the pie is red?
4
4
17
What fraction of the pie is red?
3
4
18
What fraction of the musical instruments have
strings?
2
5
19
What fraction of the fish have stripes?
3
5
20
What fraction of the arrowshit the bullseye?
1
3
21
What fraction of the pins areknocked down?
3
10
22
How many halves are in a whole?
2
1/2 1/2
23
How many quarters are in a whole?
1/4 1/4 1/4 1/4
4
24
How many eighths are in a whole?
1/8 1/8 1/8 1/8
8
1/8 1/8 1/8 1/8
25
How many eighths are in a quarter?
1/8 1/8
2
1/4
26
How many eighths are in a half?
1/8 1/8 1/8 1/8
4
1/2
27
How many quarters are in a half?
1/4
2
1/2
1/4
28
How many thirds are in a whole?
1/3
1/3
3
1/3
29
How many sixths are in a whole?
1/6
1/6
6
1/6
1/6
1/6
1/6
30
How many sixths are in a third?

1/6
2
1/6
1/3
31
How many sixths are in a half?
1/6
3
1/2
1/6
1/6
32
How many fifths are in a whole?
1/5
1/5
5
1/5
1/5
1/5
33
How many tenths are in a whole?
1/10
1/10
1/10
1/10
10
1/10
1/10
1/10
1/10
1/10
1/10
34
How many tenths are in a fifth?
1/10
1/10
2
1/5
35
How many tenths are in a half?
1/10
1/10
5
1/10
1/2
1/10
1/10
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