Common Core: 4th Grade Math : Solve Word Problems Involving Addition and Subtraction of Fractions: CCSS.Math.Content.4.NF.B.3d

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

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Example Questions

Example Question #8 : Adding Fractions In Word Problems

In Laura's pantry, \displaystyle \frac{1}{6} of the items are chips and \displaystyle \frac{2}{6} of the items are cereal. What fraction of the items are chips or cereal?  

 

Possible Answers:

\displaystyle \frac{4}{6}

\displaystyle \frac{2}{6}

\displaystyle \frac{5}{6}

\displaystyle \frac{3}{6}

\displaystyle \frac{1}{6}

Correct answer:

\displaystyle \frac{3}{6}

Explanation:

To solve this problem, we are putting the chips and the cereal together, so we add the fractions. 

\displaystyle \frac{1}{6}+\frac{2}{6}=\frac{3}{6}

3 6

Example Question #351 : Fractions

In Susan's pantry, \displaystyle \frac{2}{6} of the items are chips and \displaystyle \frac{3}{6} of the items are cereal. What fraction of the items are chips or cereal?  

 

Possible Answers:

\displaystyle \frac{1}{6}

\displaystyle \frac{4}{6}

\displaystyle \frac{5}{6}

\displaystyle \frac{2}{6}

\displaystyle \frac{3}{6}

Correct answer:

\displaystyle \frac{5}{6}

Explanation:

To solve this problem, we are putting the chips and the cereal together, so we add the fractions. 

\displaystyle \frac{2}{6}+\frac{3}{6}=\frac{5}{6} 

5 6

Example Question #352 : Fractions

In Erin's pantry, \displaystyle \frac{1}{10} of the items are chips and \displaystyle \frac{3}{10} of the items are cereal. What fraction of the items are chips or cereal?  

 

Possible Answers:

\displaystyle \frac{5}{10}

\displaystyle \frac{7}{10}

\displaystyle \frac{3}{10}

\displaystyle \frac{6}{10}

\displaystyle \frac{4}{10}

Correct answer:

\displaystyle \frac{4}{10}

Explanation:

To solve this problem, we are putting the chips and the cereal together, so we add the fractions. 

\displaystyle \frac{1}{10}+\frac{3}{10}=\frac{4}{10}

4 10

Example Question #11 : Adding Fractions In Word Problems

Mary has a reading assignment to complete by Friday. She read \displaystyle \frac{2}{6} of the book on Monday and \displaystyle \frac{3}{6} of the book on Wednesday. What fraction of the reading assignment has she completed? 

Possible Answers:

\displaystyle \frac{1}{6}

\displaystyle \frac{5}{6}

\displaystyle \frac{3}{6}

\displaystyle \frac{2}{6}

\displaystyle \frac{4}{6}

Correct answer:

\displaystyle \frac{5}{6}

Explanation:

To solve this problem, we are putting the reading that was done on Monday and the reading that was done on Wednesday together, so we add the fractions. 

\displaystyle \frac{2}{6}+\frac{3}{6}=\frac{5}{6}

5 6

Example Question #361 : Fractions

Hailey has a reading assignment to complete by Friday. She read \displaystyle \frac{1}{6} of the book on Monday and \displaystyle \frac{3}{6} of the book on Wednesday. What fraction of the reading assignment has she completed? 

 

Possible Answers:

\displaystyle \frac{4}{6}

\displaystyle \frac{5}{6}

\displaystyle \frac{2}{6}

\displaystyle \frac{1}{6}

\displaystyle \frac{3}{6}

Correct answer:

\displaystyle \frac{4}{6}

Explanation:

To solve this problem, we are putting the reading that was done on Monday and the reading that was done on Wednesday together, so we add the fractions. 

\displaystyle \frac{1}{6}+\frac{3}{6}=\frac{4}{6}

4 6

Example Question #362 : Fractions

Cindy has a reading assignment to complete by Friday. She read \displaystyle \frac{1}{6} of the book on Monday and \displaystyle \frac{1}{6} of the book on Wednesday. What fraction of the reading assignment has she completed? 

 

Possible Answers:

\displaystyle \frac{1}{6}

\displaystyle \frac{4}{6}

\displaystyle \frac{3}{6}

\displaystyle \frac{5}{6}

\displaystyle \frac{2}{6}

Correct answer:

\displaystyle \frac{2}{6}

Explanation:

To solve this problem, we are putting the reading that was done on Monday and the reading that was done on Wednesday together, so we add the fractions. 

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

2 6

Example Question #363 : Fractions

Becca has a reading assignment to complete by Friday. She read \displaystyle \frac{2}{6} of the book on Monday and \displaystyle \frac{1}{6} of the book on Wednesday. What fraction of the reading assignment has she completed? 

 

Possible Answers:

\displaystyle \frac{5}{6}

\displaystyle \frac{4}{6}

\displaystyle \frac{2}{6}

\displaystyle \frac{1}{6}

\displaystyle \frac{3}{6}

Correct answer:

\displaystyle \frac{3}{6}

Explanation:

To solve this problem, we are putting the reading that was done on Monday and the reading that was done on Wednesday together, so we add the fractions. 

\displaystyle \frac{2}{6}+\frac{1}{6}=\frac{3}{6}

3 6

Example Question #364 : Fractions

Mindy has a reading assignment to complete by Friday. She read \displaystyle \frac{1}{8} of the book on Monday and \displaystyle \frac{1}{8} of the book on Wednesday. What fraction of the reading assignment has she completed? 

 

Possible Answers:

\displaystyle \frac{3}{8}

\displaystyle \frac{5}{8}

\displaystyle \frac{6}{8}

\displaystyle \frac{2}{8}

\displaystyle \frac{4}{8}

Correct answer:

\displaystyle \frac{2}{8}

Explanation:

To solve this problem, we are putting the reading that was done on Monday and the reading that was done on Wednesday together, so we add the fractions. 

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

2 8

Example Question #365 : Fractions

Ellen has a reading assignment to complete by Friday. She read \displaystyle \frac{1}{8} of the book on Monday and \displaystyle \frac{2}{8} of the book on Wednesday. What fraction of the reading assignment has she completed? 

 

Possible Answers:

\displaystyle \frac{4}{8}

\displaystyle \frac{7}{8}

\displaystyle \frac{3}{8}

\displaystyle \frac{6}{8}

\displaystyle \frac{5}{8}

Correct answer:

\displaystyle \frac{3}{8}

Explanation:

To solve this problem, we are putting the reading that was done on Monday and the reading that was done on Wednesday together, so we add the fractions. 

\displaystyle \frac{1}{8}+\frac{2}{8}=\frac{3}{8}

3 8

Example Question #366 : Fractions

Ashley has a reading assignment to complete by Friday. She read \displaystyle \frac{2}{8} of the book on Monday and \displaystyle \frac{2}{8} of the book on Wednesday. What fraction of the reading assignment has she completed? 

 

Possible Answers:

\displaystyle \frac{4}{8}

\displaystyle \frac{5}{8}

\displaystyle \frac{6}{8}

\displaystyle \frac{3}{8}

\displaystyle \frac{7}{8}

Correct answer:

\displaystyle \frac{4}{8}

Explanation:

To solve this problem, we are putting the reading that was done on Monday and the reading that was done on Wednesday together, so we add the fractions. 

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

4 8

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