Obliczanie ułamka danej liczby - Matematyka Szkoła Podstawowa i Gimnazjum

In this video, I show you how to calculate a fraction of a given number, teach you how to write an operation as multiplying a fraction by a number, demonstrate how to convert a mixed number to an improper fraction for multiplication, demonstrate how to reduce before multiplying and how to eliminate the whole number from improper fractions, solve common problems from textbooks and workbooks, including word problems, and explain how to convert units like meters, decagrams, kilograms, and hours in the context of calculating a fraction of a given quantity. Table of Contents: 1. Introduction: What it means to calculate a fraction from a number 2. Two ways to calculate a fraction from a number 3. Reducing before multiplying a fraction by a number 4. Multiplying a mixed number by a number 5. Removing a whole from an improper fraction 6. Examples of calculating a fraction from a whole number 7. Examples with units: zlotys, centimeters, minutes, decagrams, meters, grams 8. Word problem with dividing quantities by fractions 9. Calculating the missing part as the remainder of a whole 10. Summary of the operation using the crayon example You can find the END of this video here:    • Dokończenie filmu p.t. Obliczanie ułamka d...   You can find more in the Playlist:    • UŁAMKI ZWYKŁE   EASY ACCESS to all my You can find math lessons using my website: www.matmagwiazdy.pl On this channel, you'll find a full lecture - 100% of the lessons - on Mathematics for Elementary School, High School, and Technical School. Good luck :) Tomasz D. Gwiazda 0:00 Introduction: What does it mean to calculate a fraction from a number? 1:01 Two ways to calculate a fraction from a number? 2:02 Reducing before multiplying a fraction by a number? 3:52 Multiplying a mixed number by a number? 4:03 Excluding a whole number from an improper fraction? 5:59 Examples of calculating a fraction from a whole number? 6:28 Examples with units: zlotys, centimeters, minutes, decagrams, meters, grams. 11:11 Word problem with dividing quantities by fractions. 12:53 Calculating a missing part as the remainder of a whole. 13:10 Summary of the operation using an example with crayons.