Common Core: 4th Grade Math : Build fractions from unit fractions

Study concepts, example questions & explanations for Common Core: 4th Grade Math

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Example Questions

Example Question #143 : Number & Operations: €”Fractions

\displaystyle 9\times\frac{1}{6}=

Possible Answers:

\displaystyle \frac{4}{6}

\displaystyle \frac{8}{6}=1\frac{2}{6}

\displaystyle \frac{9}{6}=1\frac{3}{6}

\displaystyle \frac{7}{6}=1\frac{1}{6}

\displaystyle \frac{5}{6}

Correct answer:

\displaystyle \frac{9}{6}=1\frac{3}{6}

Explanation:

\displaystyle 9\times\frac{1}{6} means the same thing as adding \displaystyle \frac{1}{6} nine times.

On our number line, we can make \displaystyle 9 jumps of \displaystyle \frac{1}{6}

9 6 number line

Example Question #141 : Number & Operations: €”Fractions

\displaystyle 5\times\frac{1}{3}=

Possible Answers:

\displaystyle \frac{2}{3}

\displaystyle \frac{1}{3}

\displaystyle \frac{4}{3}=1\frac{1}{3}

\displaystyle \frac{3}{3}=1

\displaystyle \frac{5}{3}=1\frac{2}{3}

Correct answer:

\displaystyle \frac{5}{3}=1\frac{2}{3}

Explanation:

\displaystyle 5\times\frac{1}{3} means the same thing as adding \displaystyle \frac{1}{3} five times.

On our number line, we can make \displaystyle 5 jumps of \displaystyle \frac{1}{3}

5 3 number line

Example Question #142 : Number & Operations: €”Fractions

\displaystyle 6\times\frac{1}{3}= 

Possible Answers:

\displaystyle \frac{1}{3}

\displaystyle \frac{2}{3}

\displaystyle \frac{5}{3}=1\frac{2}{3}

\displaystyle \frac{4}{3}=1\frac{1}{3}

\displaystyle \frac{6}{3}=2

Correct answer:

\displaystyle \frac{6}{3}=2

Explanation:

\displaystyle 6\times\frac{1}{3} means the same thing as adding \displaystyle \frac{1}{3} six times.

On our number line, we can make \displaystyle 6 jumps of \displaystyle \frac{1}{3}

6 3 number line

Example Question #143 : Number & Operations: €”Fractions

\displaystyle 8\times\frac{1}{3}= 

Possible Answers:

\displaystyle \frac{5}{3}=1\frac{2}{3}

\displaystyle \frac{2}{3}

\displaystyle \frac{6}{3}=2

\displaystyle \frac{8}{3}=2\frac{2}{3}

\displaystyle \frac{7}{3}=2\frac{1}{3}

Correct answer:

\displaystyle \frac{8}{3}=2\frac{2}{3}

Explanation:

\displaystyle 8\times\frac{1}{3} means the same thing as adding \displaystyle \frac{1}{3} eight times.

On our number line, we can make \displaystyle 8 jumps of \displaystyle \frac{1}{3}

8 3 number line

Example Question #144 : Number & Operations: €”Fractions

\displaystyle 4\times\frac{1}{4}=

Possible Answers:

\displaystyle \frac{4}{4}=1

\displaystyle \frac{6}{4}=1\frac{2}{4}

\displaystyle \frac{3}{4}

\displaystyle \frac{5}{4}=1\frac{1}{4}

\displaystyle \frac{2}{4}

Correct answer:

\displaystyle \frac{4}{4}=1

Explanation:

\displaystyle 4\times\frac{1}{4} means the same thing as adding \displaystyle \frac{1}{4} four times.

On our number line, we can make \displaystyle 4 jumps of \displaystyle \frac{1}{4}

4 4 number line

Example Question #145 : Number & Operations: €”Fractions

\displaystyle 6\times\frac{1}{4}= 

Possible Answers:

\displaystyle \frac{6}{4}=1\frac{2}{4}

\displaystyle \frac{5}{4}=1\frac{1}{4}

\displaystyle \frac{3}{4}

\displaystyle \frac{4}{4}=1

\displaystyle \frac{1}{4}

Correct answer:

\displaystyle \frac{6}{4}=1\frac{2}{4}

Explanation:

\displaystyle 6\times\frac{1}{4} means the same thing as adding \displaystyle \frac{1}{4} six times.

On our number line, we can make \displaystyle 6 jumps of \displaystyle \frac{1}{4}

6 4 number line

Example Question #146 : Number & Operations: €”Fractions

\displaystyle 7\times\frac{1}{4}= 

Possible Answers:

\displaystyle \frac{1}{4}

\displaystyle \frac{9}{4}=2\frac{1}{4}

\displaystyle \frac{8}{4}=2

\displaystyle \frac{3}{4}

\displaystyle \frac{7}{4}=1\frac{3}{4}

Correct answer:

\displaystyle \frac{7}{4}=1\frac{3}{4}

Explanation:

\displaystyle 7\times\frac{1}{4} means the same thing as adding \displaystyle \frac{1}{4} seven times.

On our number line, we can make \displaystyle 7 jumps of \displaystyle \frac{1}{4}

7 4 number line

Example Question #147 : Number & Operations: €”Fractions

\displaystyle 7\times\frac{1}{5}=  

Possible Answers:

\displaystyle \frac{6}{5}=1\frac{1}{5}

\displaystyle \frac{4}{5}

\displaystyle \frac{2}{5}

\displaystyle \frac{3}{5}

\displaystyle \frac{7}{5}=1\frac{2}{5}

Correct answer:

\displaystyle \frac{7}{5}=1\frac{2}{5}

Explanation:

\displaystyle 7\times\frac{1}{5} means the same thing as adding \displaystyle \frac{1}{5} seven times.

On our number line, we can make \displaystyle 7 jumps of \displaystyle \frac{1}{5}


7 5 number line

Example Question #11 : Understand A Fraction A/B As A Multiple Of 1/B: Ccss.Math.Content.4.Nf.B.4a

\displaystyle 8\times\frac{1}{5}= 

Possible Answers:

\displaystyle \frac{9}{5}=1\frac{4}{5}

\displaystyle \frac{3}{5}

\displaystyle \frac{8}{5}=1\frac{3}{5}

\displaystyle \frac{10}{5}=2

\displaystyle \frac{4}{5}

Correct answer:

\displaystyle \frac{8}{5}=1\frac{3}{5}

Explanation:

\displaystyle 8\times\frac{1}{5} means the same thing as adding \displaystyle \frac{1}{5} eight times.

On our number line, we can make \displaystyle 8 jumps of \displaystyle \frac{1}{5}


8 5 number line

Example Question #111 : How To Multiply Fractions

\displaystyle 10\times\frac{1}{5}= 

Possible Answers:

\displaystyle \frac{8}{5}=1\frac{3}{5}

\displaystyle \frac{10}{5}=2

\displaystyle \frac{4}{5}

\displaystyle \frac{9}{5}=1\frac{4}{5}

\displaystyle \frac{11}{5}=2\frac{1}{5}

Correct answer:

\displaystyle \frac{10}{5}=2

Explanation:

\displaystyle 10\times\frac{1}{5} means the same thing as adding \displaystyle \frac{1}{5} ten times.

On our number line, we can make \displaystyle 10 jumps of \displaystyle \frac{1}{5}

10 5 number line

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