Common Core: 4th Grade Math : Number & Operations: €”Fractions

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

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Example Questions

Example Question #98 : Build Fractions From Unit Fractions

\(\displaystyle 5\times\frac{1}{7}=\) 

Possible Answers:

\(\displaystyle \frac{4}{7}\)

\(\displaystyle \frac{6}{7}\)

\(\displaystyle \frac{8}{7}=1\frac{1}{7}\)

\(\displaystyle \frac{5}{7}\)

\(\displaystyle \frac{7}{7}=1\)

Correct answer:

\(\displaystyle \frac{5}{7}\)

Explanation:

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

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

5 7 number line

Example Question #51 : Understand A Fraction A/B As A Multiple Of 1/B: Ccss.Math.Content.4.Nf.B.4a

\(\displaystyle 7\times\frac{1}{7}=\)

Possible Answers:

\(\displaystyle \frac{7}{7}=1\)

\(\displaystyle \frac{10}{7}=1\frac{3}{7}\)

\(\displaystyle \frac{6}{7}\)

\(\displaystyle \frac{8}{7}=1\frac{1}{7}\)

\(\displaystyle \frac{9}{7}=1\frac{2}{7}\)

Correct answer:

\(\displaystyle \frac{7}{7}=1\)

Explanation:

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

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

7 7 number line

Example Question #52 : Understand A Fraction A/B As A Multiple Of 1/B: Ccss.Math.Content.4.Nf.B.4a

\(\displaystyle 2\times\frac{1}{8}=\) 

Possible Answers:

\(\displaystyle \frac{5}{8}\)

\(\displaystyle \frac{4}{8}\)

\(\displaystyle \frac{2}{8}\)

\(\displaystyle \frac{3}{8}\)

\(\displaystyle \frac{6}{8}\)

Correct answer:

\(\displaystyle \frac{2}{8}\)

Explanation:

\(\displaystyle 2\times\frac{1}{8}\) means the same thing as adding \(\displaystyle \frac{1}{8}\) two times.

On our number line, we can make \(\displaystyle 2\) jumps of \(\displaystyle \frac{1}{8}\)

2 8 number line

Example Question #181 : Number & Operations: €”Fractions

\(\displaystyle 4\times\frac{1}{8}=\)

Possible Answers:

\(\displaystyle \frac{2}{8}\)

\(\displaystyle \frac{1}{8}\)

\(\displaystyle \frac{4}{8}\)

\(\displaystyle \frac{5}{8}\)

\(\displaystyle \frac{3}{8}\)

Correct answer:

\(\displaystyle \frac{4}{8}\)

Explanation:

\(\displaystyle 4\times\frac{1}{8}\) means the same thing as adding \(\displaystyle \frac{1}{8}\) four times.

On our number line, we can make \(\displaystyle 4\) jumps of \(\displaystyle \frac{1}{8}\)

4 8 number line

Example Question #1141 : Numbers And Operations

\(\displaystyle 6\times\frac{1}{8}=\)

Possible Answers:

\(\displaystyle \frac{9}{8}=1\frac{1}{8}\)

\(\displaystyle \frac{6}{8}\)

\(\displaystyle \frac{10}{8}=1\frac{2}{8}\)

\(\displaystyle \frac{7}{8}\)

\(\displaystyle \frac{8}{8}=1\)

Correct answer:

\(\displaystyle \frac{6}{8}\)

Explanation:

\(\displaystyle 6\times\frac{1}{8}\) means the same thing as adding \(\displaystyle \frac{1}{8}\) six times.

On our number line, we can make \(\displaystyle 6\) jumps of \(\displaystyle \frac{1}{8}\)

6 8 number line

Example Question #54 : Understand A Fraction A/B As A Multiple Of 1/B: Ccss.Math.Content.4.Nf.B.4a

\(\displaystyle 3\times\frac{1}{10}=\)

Possible Answers:

\(\displaystyle \frac{3}{10}\)

\(\displaystyle \frac{4}{10}\)

\(\displaystyle \frac{5}{10}\)

\(\displaystyle \frac{7}{10}\)

\(\displaystyle \frac{6}{10}\)

Correct answer:

\(\displaystyle \frac{3}{10}\)

Explanation:

\(\displaystyle 3\times\frac{1}{10}\) means the same thing as adding \(\displaystyle \frac{1}{10}\) three times.

On our number line, we can make \(\displaystyle 3\) jumps of \(\displaystyle \frac{1}{10}\)

3 10 number line

Example Question #55 : Understand A Fraction A/B As A Multiple Of 1/B: Ccss.Math.Content.4.Nf.B.4a

\(\displaystyle 5\times\frac{1}{10}=\) 

Possible Answers:

\(\displaystyle \frac{6}{10}\)

\(\displaystyle \frac{8}{10}\)

\(\displaystyle \frac{5}{10}\)

\(\displaystyle \frac{7}{10}\)

\(\displaystyle \frac{9}{10}\)

Correct answer:

\(\displaystyle \frac{5}{10}\)

Explanation:

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

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

5 10 number line

Example Question #56 : Understand A Fraction A/B As A Multiple Of 1/B: Ccss.Math.Content.4.Nf.B.4a

\(\displaystyle 7\times\frac{1}{10}=\) 

Possible Answers:

\(\displaystyle \frac{7}{10}\)

\(\displaystyle \frac{5}{10}\)

\(\displaystyle \frac{4}{10}\)

\(\displaystyle \frac{3}{10}\)

\(\displaystyle \frac{6}{10}\)

Correct answer:

\(\displaystyle \frac{7}{10}\)

Explanation:

\(\displaystyle 7\times\frac{1}{10}\) means the same thing as adding \(\displaystyle \frac{1}{10}\) seven times.

On our number line, we can make \(\displaystyle 7\) jumps of \(\displaystyle \frac{1}{10}\)

7 10 number line

Example Question #57 : Understand A Fraction A/B As A Multiple Of 1/B: Ccss.Math.Content.4.Nf.B.4a

\(\displaystyle 2\times\frac{1}{12}=\) 

Possible Answers:

\(\displaystyle \frac{4}{12}\)

\(\displaystyle \frac{1}{12}\)

\(\displaystyle \frac{2}{12}\)

\(\displaystyle \frac{3}{12}\)

\(\displaystyle \frac{5}{12}\)

Correct answer:

\(\displaystyle \frac{2}{12}\)

Explanation:

\(\displaystyle 2\times\frac{1}{12}\) means the same thing as adding \(\displaystyle \frac{1}{12}\) two times.

On our number line, we can make \(\displaystyle 2\) jumps of \(\displaystyle \frac{1}{12}\)

2 12 number line

Example Question #58 : Understand A Fraction A/B As A Multiple Of 1/B: Ccss.Math.Content.4.Nf.B.4a

\(\displaystyle 4\times\frac{1}{12}=\) 

Possible Answers:

\(\displaystyle \frac{4}{12}\)

\(\displaystyle \frac{5}{12}\)

\(\displaystyle \frac{2}{12}\)

\(\displaystyle \frac{6}{12}\)

\(\displaystyle \frac{3}{12}\)

Correct answer:

\(\displaystyle \frac{4}{12}\)

Explanation:

\(\displaystyle 4\times\frac{1}{12}\) means the same thing as adding \(\displaystyle \frac{1}{12}\) four times.

On our number line, we can make \(\displaystyle 4\) jumps of \(\displaystyle \frac{1}{12}\)

4 12 number line

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