Subtraction of Fractions

Are you finding the subtraction of fractions hard to solve in any Mathematical question?

In this lesson,

You will see and learn the step-by-step method for the subtraction of fractions in any Mathematical question.

ALSO SEE: How To Solve The Addition of Fractions

Take note.

A link for you to practice past exam questions on fractions is included at the end of this lesson.

Question on subtraction of fraction

Let’s take an example.



1. Convert any mixed fraction to improper fraction

3\frac{2}{3} (mixed fraction)


= \dfrac{11}{3} (improper fraction)



  • See How To Convert Mixed Fraction To Improper Fraction

2. Find the LCM of the denominators

The LCM of 3 and 6

= 6

  • See How To Find the LCM of Fractions in Mathematics

3. Write the LCM as your new denominator


4. Divide the LCM by each denominator

6 ÷ 3 = 2

6 ÷ 6 = 1

5. Multiply the answer by their numerator

2 × 11 = 22

1 × 1 = 1

6. Write the answers as new numerators


7. Subtract the new numerators


= \dfrac{21}{6}

8. Reduce to its lowest form


= \dfrac{7}{2}

  • See How To Reduce Any Fraction To Its Lowest Form

Test yourself

Click on the link below to practice exam past questions on fractions now.


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