Quiz about Adding and Subtracting Mixed Fractions with Unlike Denominators

Question 1

Accepted Answer

$$11\ \frac{5}{6}$$

Answer

$$11\frac{2}{6}$$

Answer

$$11\frac{2}{5}$$

Answer

$$12\frac{1}{6}$$

Question 2

Accepted Answer

$$14\frac{17}{30}$$

Answer

$$13\frac{17}{30}$$

Answer

$$1\frac{17}{30}$$

Answer

$$13\frac{11}{13}$$

Question 3

When the denominators are not the same, I must find a...

Accepted Answer

common denominator

Answer

common numerator

Answer

equivalent fraction

Answer

mixed number

Question 4

Once I have completed adding or subtracting fractions, I should always ____________ if possible.

Accepted Answer

simplify

Answer

make equivalent fractions

Answer

add again

Answer

multiply

Question 5

Add the mixed fractions with unlike denominators: $3\frac{1}{2} + 2\frac{3}{8}$

Accepted Answer

$$5\frac{5}{8}$$

Answer

$$5\frac{7}{8}$$

Answer

$$6$$

Answer

$$5\frac{3}{4}$$

Question 6

Jason is making a fruit salad. He mixes in 3 1/4 cups of orange melon and 2 2/3 cups of green melon. How many cups of melon does Jason put in the fruit salad?

Accepted Answer

5 11/12

Answer

1 1/4

Answer

5 3/4

Answer

9/12

Question 7

Add the mixed fractions with unlike denominators: $$3\frac{1}{6} + 2\frac{1}{3}$$

Accepted Answer

$$5\frac{1}{2}$$

Answer

$$5\frac{2}{6}$$

Answer

$$5\frac{1}{3}$$

Answer

$$6$$

Question 8

Add the mixed fractions with unlike denominators: $$3\frac{1}{2} + 2\frac{3}{8}$$

Accepted Answer

$$5\frac{5}{8}$$

Answer

$$5\frac{7}{8}$$

Answer

$$6$$

Answer

$$5\frac{3}{4}$$

Question 9

Is this a correct answer?

Accepted Answer

No, you cannot add unlike denominators

Answer

Yes, the student correctly added.

Answer

No, 5 + 7 is not 12

Answer

No, 2 + 3 is not 5

Question 10

What must you do first in order to add or subtract fractions with unlike denominators?

Accepted Answer

find a common denominator

Answer

add the numerators

Answer

add the denominators

Answer

find a common numerator

Question 11

What is the process of making two fractions with unlike denominators able to be added or subtracted called?

Accepted Answer

Finding the least common multiple or least common denominator

Answer

Addition

Answer

Multiplication

Answer

Reverse multiplication

Question 12

What is the first step of adding or subtracting two fractions?

Accepted Answer

Checking if the denominators are the same or different

Answer

Checking if the numerators are the same

Answer

Checking that the fractions are equal

Answer

Adding or subtracting

Question 13

When adding and subtracting fractions, which value needs to be the same in all values being added/subtracted?

Accepted Answer

Denominator

Answer

Numerator

Question 14

When adding or subtracting fractions with unlike denominators, what is the first step?

Accepted Answer

Find a common denominator

Answer

Add the numerators

Answer

Add the denominators

Question 15

After changing the denominator, what do you need to do to the numerator?

Accepted Answer

Multiply the numerator by the same number as the denominator

Answer

Nothing

Answer

Double it

Question 16

When adding and subtracting fractions, what needs to be the same?

Accepted Answer

the denominator

Answer

the numerator

Answer

nothing

Answer

everything

Question 17

How can you find a common denominator?

Accepted Answer

Find a common multiple for the two denominators

Answer

Add the denominators together

Answer

Pick your favorite number

Question 18

What is the best common denominator for this problem?

Accepted Answer

24

Answer

6

Answer

8

Answer

48

Question 19

Solve.

Accepted Answer

1 1/12

Answer

7/12

Answer

3/4

Answer

1 1/2

Adding and Subtracting Mixed Fractions with Unlike Denominators

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