McGraw Hill Math Grade 4 Chapter 8 Lesson 3 Answer Key Adding and Subtracting Fractions

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Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 8 Lesson 3 Adding and Subtracting Fractions to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 8 Lesson 3 Adding and Subtracting Fractions

Add or Subtract

Write your answers in simplest form.

Question 1.
\(\frac{4}{12}\) + \(\frac{4}{12}\) = ___________
Answer:
The Denominators of the given fractions are same so add the numerators.
4/12 + 4/12 = 8/12 = 2/3.

Question 2.
\(\frac{4}{5}\) – \(\frac{2}{5}\) = ____________
Answer:
The Denominators of the given fractions are same so Subtract the numerators.
4/5 – 2/5 = 4-2/5 = 2/5.

Question 3.
\(\frac{6}{10}\) + \(\frac{2}{10}\) = _____________
Answer:
The Denominators of the given fractions are same so add the numerators.
6/10 + 2/10
= 6 + 2/10
= 8/10
= 4/5.

Question 4.
\(\frac{2}{4}\) + \(\frac{1}{4}\) = _____________
Answer:
The Denominators of the given fractions are same so add the numerators.
2/4 + 1/4 = 2+1/4
= 3/4.

Question 5.
\(\frac{4}{7}\) – \(\frac{1}{7}\) = ______________
Answer:
The Denominators of the given fractions are same so subtract the numerators.
4/7 – 1/7
= 4-1/7
= 5/7.

Question 6.
\(\frac{2}{8}\) + \(\frac{5}{8}\) = ______________
Answer:
The Denominators of the given fractions are same so add the numerators.
2/8 + 5/8
= 5 + 2/8
= 7/8

Question 7.
\(\frac{3}{5}\) + \(\frac{1}{5}\) = ______________
Answer:
The Denominators of the given fractions are same so add the numerators.
3/5 + 1/5
= 3+1/5
= 4/5

Question 8.
\(\frac{6}{9}\) + \(\frac{2}{9}\) = _______________
Answer:
The Denominators of the given fractions are same so add the numerators.
6/9 + 2/9
= 6 + 2/9
= 8/9

Question 9.
\(\frac{1}{11}\) + \(\frac{1}{11}\) = _______________
Answer:
The Denominators of the given fractions are same so add the numerators.
1/11 + 1/11
= 1 + 1/11
= 2/11

Question 10.
Steve, Gabe, and Lena are decorating a wall. Steve decorates \(\frac{3}{7}\) of the wall, Gabe decorates \(\frac{1}{7}\), and Lena decorates \(\frac{3}{7}\). How much more of the wall do they have to decorate?
Answer:
Steve decorates \(\frac{3}{7}\) of the wall.
Gabe decorates \(\frac{1}{7}\) of the wall.
Lena decorates \(\frac{3}{7}\) of the wall.
The Denominators of the given fractions are same so add the numerators.
3/7 + 1/7 + 3/7 = 3+3+1/7
= 7/7 = 1
They have decorating 1 of the wall.

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