Adding and Subtracting Fractions Review

ID: hanit-nugon
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Avatar for Annette WhiteheadAnnette Whitehead, BP BY-NC
Subject: Math
Grade: 5
Standards: 5.NF.A.1

This Grade 5 assignment contains 21 questions where students focus determine key elements of fractions in order to add and subtract with unlike denominators (including mixed numbers). These exercises provide practice for Numbers and Operations - Fractions.

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21 questions

Adding and Subtracting Fractions Review

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The numerator is the top number of a fraction, and the denominator is the bottom number of a fraction. When you add or subtract fractions the denominators of both fractions have to be the same. You do this by finding the LCD or Lowest Common Denominator. All solutions should always be written in the simplest form.


Solve each equation below first identify the lowest common denominator, solve, and simplify the answer. Write the answer for each step in the blank. Show your work.


48 + 14 =\frac{4}{8}\ +\ \frac{1}{4}\ =

1) Lowest Common Denominator is ___________ .

Show Work

2) Solution:

Show Work

3) Simplest Form is ___________ .


13 + 39 =\frac{1}{3}\ +\ \frac{3}{9}\ =

4) Lowest Common Denominator is ___________ .

Show Work

5) Solution:

Show Work

6) Simplest Form is ___________ .


25 + 13 =\frac{2}{5}\ +\ \frac{1}{3}\ =

7) Lowest Common Denominator is ___________ .

Show Work

8) Solution:

Show Work

9) Simplest Form is ___________ .

412  14 =\frac{4}{12}\ -\ \frac{1}{4}\ =

10) Lowest Common Denominator is ___________ .

Show Work

11) Solution:

Show Work

12) Simplest Form is ___________ .


710  12 =\frac{7}{10}\ -\ \frac{1}{2}\ =

13) Lowest Common Denominator is ___________ .

Show Work

14) Solution:

Show Work

15) Simplest Form is ___________ .


2414 + 317 =2\frac{4}{14}\ +\ 3\frac{1}{7}\ =

16) Lowest Common Denominator is ___________ .

Show Work

17) Solution:

Show Work

18) Simplest Form is ___________ .


838 + 213 =8\frac{3}{8}\ +\ 2\frac{1}{3}\ =

19) Lowest Common Denominator is ___________ .

Show Work

20) Solution:

Show Work

21) Simplest Form is ___________ .