# Adding and Subtracting Fractions Review

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.

21 questions

# Adding and Subtracting Fractions Review

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.

**$\frac{4}{8}\ +\ \frac{1}{4}\ =$**

1) Lowest Common Denominator is ___________ .

2) Solution:

3) Simplest Form is ___________ .

$\frac{1}{3}\ +\ \frac{3}{9}\ =$

4) Lowest Common Denominator is ___________ .

5) Solution:

6) Simplest Form is ___________ .

$\frac{2}{5}\ +\ \frac{1}{3}\ =$

7) Lowest Common Denominator is ___________ .

8) Solution:

9) Simplest Form is ___________ .

$\frac{4}{12}\ -\ \frac{1}{4}\ =$

10) Lowest Common Denominator is ___________ .

11) Solution:

12) Simplest Form is ___________ .

$\frac{7}{10}\ -\ \frac{1}{2}\ =$

13) Lowest Common Denominator is ___________ .

14) Solution:

15) Simplest Form is ___________ .

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

16) Lowest Common Denominator is ___________ .

17) Solution:

18) Simplest Form is ___________ .

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

19) Lowest Common Denominator is ___________ .

20) Solution:

21) Simplest Form is ___________ .