Page 194 - Basic College Mathematics with Early Integers

S E C T ION 3 .1 I INTRODUCTION TO FRACTIONS AND MIXED NUMBERS 171

Examples Write a fraction to represent the shaded part of each figure. PRACTICE 3–4
2 Write a fraction to represent
3. In this figure, 2 of the 5 equal parts are shaded.Thus, the fraction is .
5 the shaded part of each figure.
3.

4.
W number of parts shaded
number of equal parts

3
4. In this figure, 3 of the 10 rectangles are shaded.Thus, the fraction is .
10

Í number of parts shaded
number of equal parts
Work Practice 3–4

Examples Write a fraction to represent the shaded part of the diagram. PRACTICE 5–6
Write a fraction to represent
10 equal
5. the part of the whole shown.
parts
5. Just consider this
3 part of the syringe
The fraction is .
10
3 shaded parts

6. 6. Whole part
3 equal parts
1
The fraction is . 1 part shaded
3

Work Practice 5–6

Examples Draw a figure and then shade a part of it to represent each fraction. PRACTICE 7
Draw and shade a part of a
5
7. of a figure figure to represent the fraction.
6
2
We will use a geometric figure such as a rectangle. Since the denominator is 6, of a figure
3
we divide it into 6 equal parts.Then we shade 5 of the equal parts.
5 parts shaded
Answers
3 1 7 9
X of the rectangle is shaded 3. 8 4. 6 5. 10 6. 16
7. answers may vary; for example,
6 equal parts
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