Quiz about Chapter 6/7 Review

Question 1

Add - Write the sum in simplest form. $$\frac{7}{10} + \frac{4}{5} =$$

Accepted Answer

$$\frac{11}{10}$$

Answer

$$\frac{15}{10}$$

Answer

$$\frac{14}{10}$$

Answer

$$\frac{9}{10}$$

Question 2

Add - Write the sum as a mixed number in simplest form. $$\frac{2}{3} + \frac{2}{5} =$$ ____________________

Accepted Answer

$$1\frac{4}{15}$$

Answer

$$\frac{1}{15}$$

Answer

$$\frac{7}{15}$$

Answer

$$\frac{11}{15}$$

Question 3

Add - Write the sum in simplest form. $$\frac{1}{12} + \frac{1}{3} =$$ ____________________

Accepted Answer

$$\frac{1}{12} + \frac{1}{3} = \frac{5}{12}$$

Answer

$$\frac{1}{12} + \frac{1}{3} = \frac{4}{12}$$

Answer

$$\frac{1}{12} + \frac{1}{3} = \frac{1}{4}$$

Answer

$$\frac{1}{12} + \frac{1}{3} = \frac{1}{6}$$

Question 4

Add - Write the sum as a mixed number in simplest form. $$2\frac{1}{6} + 3\frac{1}{2} =$$ ____________________

Accepted Answer

$$5\frac{2}{3}$$

Answer

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

Answer

$$6\frac{1}{3}$$

Answer

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

Question 5

Add $$\frac{1}{3} + \frac{4}{9} =$$

Accepted Answer

$$\frac{7}{9}$$

Answer

$$\frac{5}{9}$$

Answer

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

Answer

$$\frac{13}{9}$$

Question 6

Add. Write the sum in simplest form. $$\frac{3}{10} + \frac{1}{2} =$$ ____________________

Accepted Answer

$$\frac{8}{10}$$ or $$\frac{4}{5}$$

Answer

$$\frac{7}{10}$$

Answer

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

Answer

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

Question 7

Add. Write the sum as a mixed number in simplest form. $$4\frac{1}{3} + 7\frac{1}{6} =$$ ____________________

Accepted Answer

11 $$\frac{1}{2}$$

Answer

11 $$\frac{1}{3}$$

Answer

11 $$\frac{1}{6}$$

Answer

11 $$\frac{1}{9}$$

Question 8

Add. Write the sum in simplest form. $$\frac{1}{2} + \frac{1}{10} =$$ ____________________

Accepted Answer

$$\frac{1}{2} + \frac{1}{10} = \frac{6}{10} = \frac{3}{5}$$

Answer

$$\frac{1}{2} + \frac{1}{10} = \frac{5}{10} = \frac{1}{2}$$

Answer

$$\frac{1}{2} + \frac{1}{10} = \frac{7}{10}$$

Answer

$$\frac{1}{2} + \frac{1}{10} = \frac{2}{5}$$

Question 9

Add. Write the sum as a mixed number in simplest form. $$9 + 8\frac{2}{3} + 2\frac{1}{4} =$$ ____________________

Accepted Answer

$$19\frac{11}{12}$$

Answer

20 $$\frac{1}{12}$$

Answer

18 $$\frac{3}{4}$$

Answer

21 $$\frac{1}{2}$$

Question 10

What fraction of his money did he spend all together?

Accepted Answer

Peter spent a total of $$\frac{5}{12} + \frac{1}{4} + \frac{1}{6}$$ of his money.

Answer

Peter spent a total of $$\frac{1}{2}$$ of his money.

Answer

Peter spent a total of $$\frac{3}{4}$$ of his money.

Answer

Peter spent a total of $$\frac{2}{3}$$ of his money.

Question 11

Rename as a mixed number in the simplest form. $$15 \frac{22}{20} = \underline{\hspace{1cm}}$$

Accepted Answer

15 $$\frac{11}{10}$$

Answer

15 $$\frac{12}{10}$$

Answer

15 $$\frac{10}{10}$$

Answer

15 $$\frac{9}{10}$$

Question 12

Jessica has $$1 \frac{4}{5}$$ liters of apple juice and $$1 \frac{3}{10}$$ of raspberry juice. She mixes them and says she has $$2 \frac{1}{10}$$ . Is she correct?

Accepted Answer

No, she is incorrect.

Answer

Yes, she is correct.

Question 13

Subtract $$7 \frac{5}{6} - 1 \frac{1}{3} = \underline{\hspace{1cm}}$$

Accepted Answer

7 5/6 - 1 1/3

Answer

6 1/2

Answer

5 2/3

Answer

6 5/6

Question 14

Subtract. Write the answer in simplest form. $$\frac{11}{12} - \frac{3}{4} = \underline{\hspace{1cm}}$$

Accepted Answer

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

Answer

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

Answer

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

Answer

$$\frac{1}{4}$$

Question 15

Estimate the sum. Show your work. $$12 \frac{6}{7} + 3 \frac{1}{3} \approx \underline{\hspace{1cm}}$$

Accepted Answer

12 6/7 + 3 1/3

Answer

12 5/7 + 3 1/3

Answer

12 6/7 + 3 2/3

Answer

12 5/7 + 3 2/3

Question 16

Subtract. Write the answer in simplest form. $$\frac{5}{6} - \frac{1}{2} = ?$$

Accepted Answer

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

Answer

$$\frac{1}{4}$$

Answer

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

Answer

$$\frac{2}{3}$$

Question 17

Subtract $$\frac{5}{6} - \frac{5}{3} = \underline{\quad\quad\quad}$$

Accepted Answer

$$\frac{-5}{6}$$

Answer

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

Answer

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

Answer

$$\frac{0}{1}$$

Question 18

Subtract. Write the answer in simplest form. $$\frac{3}{5} - \frac{1}{2} = \underline{\quad\quad\quad}$$

Accepted Answer

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

Answer

$$\frac{1}{10}$$

Answer

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

Answer

$$\frac{3}{5} - \frac{1}{2}$$

Question 19

Estimate the difference. Use rounding. Show your work. $$4 \frac{2}{3} - 1 \frac{1}{6} \approx \underline{\quad\quad\quad}$$

Accepted Answer

4 $$\frac{2}{3}$$ - 1 $$\frac{1}{6}$$ \approx 3

Answer

4 $$\frac{2}{3}$$ - 1 $$\frac{1}{6}$$ \approx 2

Answer

4 $$\frac{2}{3}$$ - 1 $$\frac{1}{6}$$ \approx 4

Answer

4 $$\frac{2}{3}$$ - 1 $$\frac{1}{6}$$ \approx 5

Question 20

Subtract $$3 \frac{3}{8} - 1 = \underline{\quad\quad\quad}$$

Accepted Answer

2 $$\frac{3}{8}$$

Answer

3 $$\frac{1}{8}$$

Answer

3 $$\frac{3}{8}$$

Answer

2 $$\frac{1}{8}$$

Question 21

Find the difference. Write the answer in simplest form. $$\frac{4}{5} - \frac{7}{10} = \underline{\quad\quad\quad}$$

Accepted Answer

$$\frac{-1}{10}$$

Answer

$$\frac{1}{10}$$

Answer

$$\frac{3}{10}$$

Answer

$$\frac{-3}{10}$$

Question 22

Round each fraction to the 0, $$\frac{1}{2}$$ , 1. Is the answer reasonable? $$\frac{2}{3}, \frac{1}{5}, \frac{13}{15}$$

Accepted Answer

The rounding is reasonable for some fractions but not for others.

Answer

Yes, the rounding is reasonable for all fractions.

Answer

No, the rounding is not reasonable for any fraction.

Answer

The rounding cannot be determined.

Question 23

Estimate by rounding to the 0, $$\frac{1}{2}$$ , 1. $$\frac{7}{8} - \frac{2}{5} \approx \underline{\quad\quad\quad}$$

Accepted Answer

$$\frac{7}{8} - \frac{2}{5} \approx \frac{1}{2}$$

Answer

$$\frac{7}{8} - \frac{2}{5}$$ \approx 0

Answer

$$\frac{7}{8} - \frac{2}{5} \approx 1$$

Answer

$$\frac{7}{8} - \frac{2}{5} \approx \frac{3}{4}$$

Question 24

30. Susie lives $$\frac{4}{5}$$ mile from school. Jessica lives $$\frac{3}{4}$$ mile from school. How much closer does Jessica live?

Accepted Answer

$$\frac{1}{10}$$ mile

Answer

$$\frac{1}{20}$$ mile

Answer

$$\frac{1}{5}$$ mile

Answer

$$\frac{1}{4}$$ mile

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