228 Chapter 3 Fractions and Mixed Numbers
Fill in the blanks.- When a fraction is followed by the word of,such as
of, it indicates that we are to find a part of some
quantity using. - The answer to a multiplication is called the.
- To a fraction, we remove common factors of
the numerator and denominator. - In the expression , the is and the
is 3. - The of a triangle is the amount of surface that
it encloses. - Label the baseand the heightof the triangle shown
below. - Fill in the blanks: To multiply two fractions, multiply
the and multiply the. Then
, if possible. - Use the following rectangle to find
a. Draw three vertical lines that divide the given
rectangle into four equal parts and lightly shade
one part. What fractional part of the rectangle did
you shade?
b. To find of the shaded portion, draw two
horizontal lines to divide the given rectangle into
three equal parts and lightly shade one part. Into
how many equal parts is the rectangle now
divided? How many parts have been shaded
twice?
c. What is- Determine whether each product is positive or
negative.You do not have to find the answer.
a. b.c. d. 3
4
a8
9
ba1
2
b4
5
a1
3
ba1
8
b7
16
a2
21
b1
8
3
5
1
3 1
4?1
31
3 1
4.CONCEPTS
1(^14)
1
42
3
1
3
VOCABULARY 10. Translate each phrase to symbols.You do not have to
find the answer.
a. of b. of 40
- Fill in the blanks: Area of a triangle
()( )orA - Fill in the blank: Area is measured in units,
such as in.^2 and ft^2. - Write each of the following integers as a fraction.
a. 4 b. –3 - Fill in the blanks: represents the repeated
multiplication.
Fill in the blanks to complete each solution.15.16.Multiply. Write the product in simplest form.See Example 1.1
2
1
8
1
9
1
5
1
3
1
5
1
4
1
2
GUIDED PRACTICE
9
1
413 4
13
17 4
4 3
7
12
4
21
7 4
7
1
7
2 2 2 3
15 7
2 2 5
5
8
7
15
5
8
1122
2NOTATION
1
21
5
4
9
7
10
SECTION 3.2 STUDY SET