Quiz about Adding and Subtracting Fractions with Unlike Denominators

Question 1

What number could be a common denominator for these two fractions?
2/3 and 3/4

Accepted Answer

12

Answer

3

Answer

4

Answer

7

Question 2

Which of these numbers could NOT be a common denominator for these two fractions?
1/6 and 1/4

Accepted Answer

18

Answer

12

Answer

24

Answer

36

Question 3

Fill in the blank in order to create a true number sentence:
3/5 = __ /10

Accepted Answer

6

Answer

15

Answer

5

Answer

10

Question 4

1/2 + 1/3 + 1/5 =

Accepted Answer

31/30

Answer

3/10

Answer

1/30

Answer

These fractions cannot be added

Question 5

4/5 - 1/20 =

Accepted Answer

15/20

Answer

0

Answer

20/15

Answer

3/15

Question 6

Bonus Challenge!!!
(4/5 - 1/10) + 2/3 =

Accepted Answer

41/30

Answer

5/8

Answer

7/18

Answer

12/15

Question 7

While making desserts for a bake sale, Lyla used 7/10 of a scoop of brown sugar as well as 1/2 of a scoop of white sugar. How much more brown sugar did Lyla use?

Accepted Answer

1/5

Answer

1 1/2

Answer

2/3

Answer

3/4

Question 8

At the neighborhood block party, Cora served 1/2 of a gallon of hot chocolate and 1/10 of a gallon of apple cider. How much hot chocolate and apple cider did Cora serve?

Accepted Answer

3/5

Answer

2/5

Answer

2/11

Answer

1/6

Question 9

Carefully following a recipe, Ben used exactly 5/8 of a cup of oil and 3/4 of a cup of water. How many cups of liquid did Ben use in all?

Accepted Answer

1 3/8

Answer

1/8

Answer

2/3

Answer

1 1/2

Question 10

Marty made two types of cookies.  He used 2/3 cup of sugar for one recipe and 1/4 cup  of sugar for the other.  How much sugar did he use in all?

Accepted Answer

11/12

Answer

5/12

Answer

3/7

Answer

1/3

Question 11

What is 2/3 + 4/5?

Accepted Answer

1 7/15

Answer

1 5/6

Answer

12/65

Answer

1 2/3

Question 12

What is 8/9 - 5/6?

Accepted Answer

1/18

Answer

3/4

Answer

6/7

Answer

10/12

Question 13

What is 9/10 - 3/4?

Accepted Answer

3/20

Answer

5/7

Answer

3/8

Answer

9/10

Question 14

Which of these numbers could NOT be a common denominator for these two fractions?
1/6 and 1/4

Accepted Answer

18

Answer

12

Answer

24

Answer

36

Question 15

Fill in the blank in order to create a true number sentence:
1/2 = __ /8

Accepted Answer

4

Answer

2

Answer

6

Answer

8

Question 16

What must you have to add and subtract fractions?

Accepted Answer

Common denominators

Answer

Common numerators

Answer

Different numerators

Answer

Different denominators

Question 17

Convert the mixed fraction to a improper fraction.

Accepted Answer

22 /9

Answer

20/9

Answer

31 / 9

Answer

4/6

Question 18

12/5=

Accepted Answer

2 2/5

Answer

1 2/5

Answer

7/5

Answer

3 1/5

Question 19

Convert the mixed fraction to a improper fraction.

Accepted Answer

34 /8

Answer

30 /8

Answer

32 /8

Answer

28 /8

Question 20

15/7=

Accepted Answer

2 1/7

Answer

1 3/7

Answer

1/7

Answer

3 3/7

Question 21

9/8

Accepted Answer

1 1/8

Answer

1 3/8

Answer

2 1/8

Answer

2 2/8

Question 22

Daniel watched a beetle and a spider on the sidewalk. The beetle crawled 1/2 of a yard and the spider crawled 1/6 of a yard. How much farther did the beetle crawl than the spider?

Accepted Answer

1/3

Answer

1/4

Answer

1/2

Answer

2/3

Question 23

Pam walks 7/8 of a mile to school.  Paul walks 1/2 of a mile to school.  How much farther does Pam walk than Paul?

Accepted Answer

3/8

Answer

4/5

Answer

1 3/8

Answer

3/4

Question 24

Solve this equation:

4 5/6 - 2 1/3 =

Accepted Answer

2 1/2

Answer

2 1/3

Answer

1 5/6

Question 25

A Red Oak leaf is 8 1/2 inches long. A Sugar Maple leaf is 6 3/4 inches long? How much longer is a Red Oak leaf than a Sugar Maple leaf?

Accepted Answer

1 3/4 inches

Answer

1 1/4 inches

Answer

2 1/2 inches

Question 26

Micah's rain gauge showed that 9 1/2 centimeters of rain fell last month. This month, the rain gauge measured 10 3/10 centimeters. How many more centimeters of rain fell this month?

Accepted Answer

4/5 centimeters

Answer

8/10 centimeters

Answer

2/5 centimeters

Question 27

It is 2 1/8 miles to Evan's grandmother's house. He has already walked 3/4 mile. How much farther does he have to walk?

Accepted Answer

1 3/8 miles

Answer

1 4/8 miles

Answer

1 1/2 miles

Question 28

The Plainville Zoo has had elephants for 2 2/3 years. The zoo has had zebras for 1 1/2 years. how many more years has the zoo had elephants?

Accepted Answer

1 1/6 years longer

Answer

1 1/3 years longer

Answer

1 1/2 years longer

Question 29

A landscaper used 2 1/2 tons of sunburst pebbles, 3 1/4 tons of black polished pebbles, and 5/8 ton of river pebbles. What was the total weight of the pebbles?

Accepted Answer

6 3/8 tons

Answer

6 1/2 tons

Answer

5 7/8 tons

Question 30

A mark on the side of a pier shows the water is 4 7/8 feet deep. At high tide, the water level rises 2 1/4 feet. About how deep is the water at high tide?

Accepted Answer

7 feet

Answer

6 feet

Answer

5 feet

Question 31

5 1/2 + 6 2/3=
Simplify if needed.

Accepted Answer

12  1/6

Answer

11  7/6

Answer

10  1/6

Answer

9  3/4

Question 32

2 - 1/2

Accepted Answer

1  1/2

Answer

1/2

Answer

2  1/2

Answer

1

Question 33

7  3/15  -  3  4/5

Accepted Answer

3  2/5

Answer

3  1/5

Answer

3  4/5

Answer

3  3/5

Question 34

6  1/4  -  2  6/8

Accepted Answer

3  1/2

Answer

3  3/4

Answer

4  1/2

Answer

4  1/4

Question 35

6  1/4  -  2  6/8

Accepted Answer

3  1/2

Answer

3  3/4

Answer

4  1/2

Answer

4  1/4

Question 36

4  2/6  -  1  2/3

Accepted Answer

2  2/3

Answer

1  2/3

Answer

3  2/3

Answer

4  2/3

Question 37

2 9/10 + 6 1/3=

Accepted Answer

8 5/9

Answer

5 4/9

Answer

6 1/4

Answer

4 1/2

Question 38

5 1/2 + 6 2/3=
Reduce if needed.

Accepted Answer

12  1/6

Answer

11  7/6

Answer

10  1/6

Answer

9  3/4

Question 39

8 2/4 - 3 1/3=
Reduce if needed.

Accepted Answer

5  1/6

Answer

5  2/12

Answer

11  1/6

Answer

8  2/3

Question 40

9 2/3 + 2 7/9=
Reduce if needed.

Accepted Answer

12  4/9

Answer

11  13/9

Answer

11  7/9

Answer

7  7/9

Question 41

3  -  2  1/7

Accepted Answer

6/7

Answer

1  6/7

Answer

5/7

Answer

5  6/7

Question 42

17  1/6 - 3  2/3

Accepted Answer

13  1/2

Answer

14  3/6

Answer

13  1/3

Answer

13  5/6

Question 43

4  1/8 -  1  5/8

Accepted Answer

2  1/2

Answer

2  3/8

Answer

3

Answer

3  1/2

Adding and Subtracting Fractions with Unlike Denominators

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