Transcript Rounding Fractions and

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Objective
Round fractions and mixed numbers
Review
Vocabulary
Mixed number
The sum of a whole number and a fraction
Example 1 Round to the Nearest Half
Example 2 Round to the Nearest Half
Round
to the nearest half.
Write the problem
“Half” could be a whole number also
4-2
=
Look at the denominator 5
“half” of 5 is 2
5-4=1
Is the numerator 4 closer to 2
or the denominator of 5?
1/2
Round
to the nearest half.
4 is closer to 5
4-2
=
5-4=1
Answer: 7
Round to the next whole number
of 7
1/2
Round
to the nearest half.
Answer: 4
1/2
Find the length of the segment to the nearest half inch.
Read the measure of the line
and write
The “half” mark closest to
1 and
2/2
is
Find the length of the segment to the nearest half inch.
Answer: 1 inch
Visually decide if
is closer to 1 or
is closer to 1
Add dimensional analysis
2/2
Find the length of the segment to the nearest half.
Answer:
inches
2/2
Assignment
Lesson 6:1 Rounding Fractions and
Mixed Numbers
11 - 30 All
DECORATING There is a
-foot gap between the
entertainment center and a wall in a family’s living
room. Should the family purchase a 5-foot wide
bookshelf or a
-foot wide bookshelf?
is less than five. So, a 5-foot wide bookshelf would be
too large.
Answer: The family should purchase the
bookshelf.
3/3
-foot wide
*
COOKING Phyllis has a recipe that calls for
cups of
spaghetti sauce. Should she purchase a 4-cup jar of
spaghetti sauce or a
cup jar of spaghetti sauce for
the recipe?
Answer: 4-cup jar
3/3