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Subtracting Fractions with Different Denominators

This worksheet covers Subtracting Fractions with Different Denominators, which is part of the Fractions module in the Elementary Math course. Practice problems are designed to strengthen key concepts and build confidence.

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Subtracting Fractions with Different Denominators

Fractions • Elementary Math

Set 5 — Foundation

1.

If you have $\frac{3}{4}$ of a pizza and you eat $\frac{1}{2}$ of it, how much pizza is left?

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Other Sets

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Set 1Foundation Set 2Foundation Set 3Foundation Set 4Foundation Set 5Foundation Custom Worksheet

Other Sets

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Set 1Foundation Set 2Foundation Set 3Foundation Set 4Foundation Set 5Foundation Custom Worksheet

2

1

A.

$\frac{1}{4}$

B.

$\frac{1}{2}$

C.

$\frac{5}{8}$

D.

$\frac{1}{8}$

2.

What is $\frac{3}{5} - \frac{1}{3}$ ?

A.

$\frac{4}{15}$

B.

$\frac{2}{15}$

3.

A baker used $\frac{5}{6}$ of a cup of sugar for cookies and $\frac{1}{2}$ a cup for cake. How much sugar did he use in total?

A.

$\frac{1}{3}$

B.

$\frac{1}{6}$

4.

If $\frac{7}{10}$ of a book is read and $\frac{1}{5}$ of it is reread, how much of the book is left unread?

A.

$\frac{1}{10}$

B.

$\frac{3}{10}$

5.

If a recipe calls for $\frac{3}{4}$ of a cup of milk and you accidentally put in $\frac{1}{3}$ of a cup, how much milk do you need to remove?

A.

$\frac{1}{12}$

B.

$\frac{5}{12}$

6.

What is $\frac{5}{8} - \frac{1}{4}$ ?

A.

$\frac{3}{8}$

B.

$\frac{1}{2}$

7.

What is $\frac{4}{5} - \frac{1}{2}$ ?

A.

$\frac{3}{10}$

B.

$\frac{7}{10}$

8.

A class has $\frac{2}{3}$ of its students present, and $\frac{1}{4}$ of those students leave. What fraction of the class is still present?

A.

$\frac{5}{12}$

B.

$\frac{1}{2}$

9.

If you have $\frac{9}{10}$ of a meter of ribbon and you cut off $\frac{3}{5}$ of a meter, how much ribbon do you have left?

10.

What is $\frac{6}{7} - \frac{2}{5}$ ?

2

C.

$\frac{8}{15}$

D.

$\frac{1}{15}$

1

C.

$\frac{1}{2}$

D.

$\frac{1}{4}$

3

C.

$\frac{1}{2}$

D.

$\frac{1}{5}$

5

C.

$\frac{1}{2}$

D.

$\frac{1}{6}$

1

C.

$\frac{1}{4}$

D.

$\frac{1}{8}$

7

C.

$\frac{1}{5}$

D.

$\frac{1}{10}$

1

C.

$\frac{1}{3}$

D.

$\frac{7}{12}$

A.

$\frac{1}{2}$

B.

$\frac{1}{5}$

C.

$\frac{1}{10}$

D.

$\frac{2}{5}$

A.

$\frac{8}{35}$

B.

$\frac{18}{35}$

C.

$\frac{4}{35}$

D.

$\frac{1}{7}$