---
title: Κλάσματα – βασικές έννοιες
description: Μάθε κλάσματα, αριθμητή, παρονομαστή, απλοποίηση και σύγκριση με απλά παραδείγματα.
url: https://astra-ai.co/el/videos/arithmitiki/klasmata-kefalaio/
locale: el
type: video-chapter
keywords:
  - κλάσματα
published: 2026-10-01T19:58:46.867Z
updated: 2026-10-01T19:58:46.867Z
alternates:
  bg: https://astra-ai.co/bg/videos/aritmetika/drobi/
  br: https://astra-ai.co/br/videos/aritmetica/capitulo-matematica-048/
  cs: https://astra-ai.co/cs/videos/aritmetika/zlomky/
  da: https://astra-ai.co/da/videos/aritmetik/broeker/
  de: https://astra-ai.co/de/videos/arithmetik/brueche/
  el: https://astra-ai.co/el/videos/arithmitiki/klasmata-kefalaio/
  en: https://astra-ai.co/videos/arithmetic/fractions/
  en-IN: https://astra-ai.co/en-IN/videos/arithmetic/chapter-b1b76b5e/
  en-PH: https://astra-ai.co/en-PH/videos/arithmetic/chapter-b1b76b5e/
  es: https://astra-ai.co/es/videos/aritmetica/fracciones/
  es-AR: https://astra-ai.co/es-AR/videos/aritmetica/capitulo-42/
  es-CL: https://astra-ai.co/es-CL/videos/aritmetica/capitulo-42/
  es-PE: https://astra-ai.co/es-PE/videos/aritmetica/capitulo-video-b1b76b5e/
  et: https://astra-ai.co/et/videos/aritmeetika/murrud/
  fi: https://astra-ai.co/fi/videos/aritmetiikka/murtoluvut/
  fr: https://astra-ai.co/fr/videos/arithmetique/les-fractions/
  hr: https://astra-ai.co/hr/videos/aritmetika/razlomci/
  hu: https://astra-ai.co/hu/videos/aritmetika/tortek/
  id: https://astra-ai.co/id/videos/aritmetika/pecahan/
  it: https://astra-ai.co/it/videos/aritmetica/frazioni/
  ja: https://astra-ai.co/ja/videos/arithmetic-ja/42/
  km: https://astra-ai.co/km/videos/arithmetic/chapter-b1b76b5e/
  ko: https://astra-ai.co/ko/videos/arithmetic-ko/42/
  lo: https://astra-ai.co/lo/videos/lo-b482616f/lo-b1b76b5e/
  lt: https://astra-ai.co/lt/videos/aritmetika/trupmenos/
  lv: https://astra-ai.co/lv/videos/aritmetika/dalas/
  ms: https://astra-ai.co/ms/videos/arithmetic/bab-48-matematik-asas/
  ms-BN: https://astra-ai.co/ms-BN/videos/aritmetik/bab-b1b76b5e/
  mx: https://astra-ai.co/mx/videos/aritmetica/capitulo-42/
  my: https://astra-ai.co/my/videos/my-b482616f/my-b1b76b5e/
  nl: https://astra-ai.co/nl/videos/rekenkundig/breuken/
  no: https://astra-ai.co/no/videos/aritmetikk/br-ker/
  pl: https://astra-ai.co/pl/videos/arytmetyka/-ulamki/
  pt: https://astra-ai.co/pt/videos/aritmetica/fracoes/
  pt-TL: https://astra-ai.co/pt-TL/videos/aritmetica/capitulo-de-video-042/
  ro: https://astra-ai.co/ro/videos/aritmetica/fractii/
  sk: https://astra-ai.co/sk/videos/aritmetika/kapitola-042/
  sl: https://astra-ai.co/sl/videos/aritmetika/ulomki/
  sr: https://astra-ai.co/sr/videos/aritmetika/poglavlje-042/
  sv: https://astra-ai.co/sv/videos/aritmetik/brak/
  th: https://astra-ai.co/th/videos/arithmetic/bot-48-sat-suan/
  tr: https://astra-ai.co/tr/videos/aritmetik/bolum-042/
  uk: https://astra-ai.co/uk/videos/uk-topic-06/uk-chapter-48/
  vi: https://astra-ai.co/vi/videos/vi-topic-06/vi-chapter-48/
  zh-HK: https://astra-ai.co/zh-HK/videos/shuxue-kecheng-006/shuxue-zhang-048/
  zh-TW: https://astra-ai.co/zh-TW/videos/arithmetic/chapter-b1b76b5e/
---

# Κλάσματα

> Το κεφάλαιο εισάγει τα κλάσματα ως λόγους αριθμητή και παρονομαστή.

## Κλάσματα

Ένα κλάσμα περιγράφει μέρος μιας ολότητας.

## Ιδιότητες

Συγκρίνουμε, απλοποιούμε και επεκτείνουμε κλάσματα.

## Πράξεις

Τα κλάσματα χρησιμοποιούνται και στις τέσσερις πράξεις.