Home Link 5-3
Adding Fractions
NAME
DATE
TIME
Solve the number stories. Use a different strategy for each one.
1
The park department wants to have new trees planted. They agreed that
3
1
2
_
of the trees will be oak, _
will be pine, and _
will be willow. They are
10
10
10
undecided about the rest. What fraction of the trees will be oak, willow, or pine?
a.
Fill in the whole box.
b.
new trees
c.
P
6
__
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Number model with unknown:
One way to solve a fraction addition problem:
O P
d.
47, 160161
3
1
2
__
__
+
Sample answer: __
10
10 + 10 = t
Whole
2
SRB
Answer (with unit): 10
Sample answer:
P W W
oak, willow, or pine
The Patels have a DVD collection. Three-eighths of the DVDs are animated.
Two-eighths of them are mysteries. One-eighth are comedies. The rest are
about travel. What fraction of the DVDs are not about travel?
a.
Fill in the whole box.
b.
Whole
DVD collection
c.
d.
Number model with unknown:
3
2
1
Sample answer: _8 + _8 + _8 = d
Sample answer:
A different way to solve a fraction addition problem:
_3 + _2 + _1 =
8
8
8
(
_1 + _1 + _1 + _1 + _1 + _1 = _6
8
8
8
8
8
8
8
(
)
)
_6 not about travel
Answer (with unit): 8
Add.
3
2
1
_
+_
=
5
5
5
5
5
_
+_
=
6
6
_3
5
10
__
_
6 , or 1 6
_4
4
3
1
_
+_
=
2
2
6
1
2
1
_
+_
+_
=
3
3
3
4
2
, or 2
_4
_1
,
or
1
3
3
Practice
Represent the fractions as decimals.
7
4
_
=
10
0.4
8
40
_
= 0.40,
100
or 0.4
9
6
_
=
10
0.6
10
4.NF.3, 4.NF.3a, 4.NF.3b 4.NF.3d, 4.NF.6, SMP2
6
_
=
100
0.06
197