Fraction practice

Practice session

What you practise

Type your answer as a fraction such as 5/6, or as a whole number when the denominator is 1. The feedback spots two classic mistakes: adding the denominators together, and stopping before the fraction is simplified. Your progress stays on this device.

• Adding and subtracting with common denominators
• Multiplying and dividing
• Simplifying with the greatest common divisor (GCD)

Levels and difficulty

Pick vmbo, havo or vwo first. The session starts at difficulty 1 and moves between 1 and 4 based on your last five answers: all five right takes you up, two or fewer right takes you back down with the explanation already open. Havo and vwo questions open with bereken (calculate), the Dutch exam verb for "het gevraagde uitrekenen" (syllabus wiskunde B havo 2027 (Examenblad)). In test mode there is a timer and no hints until the summary.

Example

Calculate 1/2 + 1/3.

1. Common denominator: 1/2 + 1/3 = 3/6 + 2/6
2. Add: 5/6
3. Simplify: 5/6 is already in its simplest form

Answer: 5/6. The fraction calculator works the same way.

What you need to know

Fractions in the 2027 central exam syllabus, for the levels we have a source for. This is a checklist of the skills on this page, not the full exam content.

vwo · wiskunde A · domain B (B1 Algebra)

Algebra en tellen · source syllabus wiskunde A vwo 2027 (Examenblad)

• Common denominators, then add or subtract
• Multiplying and dividing fractions
• Simplifying with the GCD

The vmbo and havo syllabi for fractions have not been checked yet; practice works at every level.

Formula sheet

Print-friendly: use Print in your browser.

• Adding (common denominator) $$\frac{a}{n}+\frac{b}{n}=\frac{a+b}{n}$$
• Multiplying $$\frac{a}{b}\times \frac{c}{d}=\frac{ac}{bd}$$
• Dividing $$\frac{a}{b}÷\frac{c}{d}=\frac{a}{b}\times \frac{d}{c}$$

Numerator (teller)

The number above the fraction bar.

Denominator (noemer)

The number below the fraction bar. It can never be 0.

Simplifying (vereenvoudigen)

Dividing numerator and denominator by their GCD (in Dutch: GGD).

Practice with real exam questions on Examenblad.nl (in Dutch). We do not host past exams.

Frequently asked questions

How do I type a fraction?

As numerator/denominator, for example 5/6. A negative fraction is written -1/4.

Where is my score saved?

Your score stays on this device only. No account needed.

How does this relate to the calculator?

Answers and steps come from the same code as the fraction calculator.