Mrs. Kronenfeld spent 2 1/5 hours reading a book and 1/2 hour on her Peloton. Which models or statements represent the problem. Choose all that are correct.
a)
You can use a common denominator of 10 can be used to add the fractions.
b)
Mrs. Kronenfeld spent more than 3 hours combined on her activities.
c)
The sum can be written as 11/5 + 1/2
d)
2 2/10 + 5/10
2.
A common denominator of 18 (choose which set of fractions can be used for a common denominator of 18)
a)
3/4, 2/5
b)
2/3, 5/8
c)
3/6, 2/9
d)
1/2, 7/8
3.
Choose the set of fractions that can be used for a common denominator of 9
a)
2/9, 1/3
b)
1/3, 2/6
c)
9/10, 4/9
d)
5/6, 2/3
4.
Choose which set of fractions can have a common denominator of 10
a)
7/8, 1/2
b)
3/4, 5/6
c)
1/2, 6/7
d)
3/5, 1/2
5.
A city park has two trails. One trail, the Idyllwild, is 4 2/9 mile long and the other trail, the Sequoia, is 2 1/3 mile long. How much longer is the Idyllwild trail than the Sequoia trail? Enter your answer below.
(a)
6.
Mrs. McNitt has a busy afternoon. She makes a list of all the tasks she has to complete and how long it will take to complete each task.
Grades papers 2/3
Cooks Dinner 1/2
Works out 3/4
Read 5/6
How long will it take Mrs. McNitt to complete all her tasks?
a)
Over 3 hours
b)
2 9/12 hours OR
2 3/4 hours
c)
2 hours
d)
9/16 of an hour
7.
Match the following
6/7
2/7 + 4/7 =
3/11
9/11 - 6/11 =
15/19
8/19 + 7/19 =
5/6
2/6 + 1/2 =
3/4
1/2 + 1/4 =
8.
Mrs. McNitt says it will take her less than 1 1/4 hours to complete her tasks because they will only take 9/12 of an hour to complete. Is she correct?
Mrs. McNitt (a) correct. To solve this problem she should multiply the numerator of the fraction for each task by the factor used to create the (b) . It will take her (c) hour(s) for these tasks, which is (d) than 1 1/4 hours.
เลือกจากคำด้านล่าง
is
is not
common denominator
least common multiple
numerator
2 9/12
6/12
more
less
9.
What is 4 2/3 + 1 2/9
a)
5 4/12
b)
5 4/27
c)
5 8/9
d)
4 3/4
แป้นคำตอบ
Adding and Subtracting Fractions
คำถามทั้งหมด: 9
1.
a)
You can use a common denominator of 10 can be used to add the fractions.