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Software · Education & science

KBruch

Exercise Fractions.

  • Completely free
  • Windows and Linux
  • Open source
  • No account

At a glance

KBruch is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-2.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No account needed
  • Commercial use allowed

About

KBruch is a small program to practice calculating with fractions and percentages. Different exercises are provided for this purpose and you can use the learning mode to practice with fractions. The program checks the user's input and gives feedback. Features: Arithmetic exercise - in this exercise you have to solve a given fraction task. You have to enter the numerator and the denominator. This is the main exercise. Comparison exercise - in this exercise you have to compare the size of 2 given fractions, using the symbols >, < or =. Conversion exercise - in this exercise you have to convert a given number into a fraction. Factorization exercise - in this exercise you have to factorize a given number into its prime factors. Percentage exercise - in this exercise you have to calculate percentages.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Winget (Windows Package Manager) (credit card, account, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 7 November 2026
  • Description from Flathub — AppStream (Flathub)

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