Tiêu đề Chapter 8. Fractions.pdf ✅

CHAPTER 8: FRACTIONS
(1) 08 FRACTIONS FRACTIONS  INTRODUCTION A fraction is a part of a whole. This is one whole. One whole circle is shaded. The circle is divided into 2 equal parts. 1 out of the 2 equal parts is shaded. That means 1 2 of the circle is shaded. We say one half of the circle is shaded. Two - halves is a whole.
(2) 08 FRACTIONS The circle is divided into 4 equal parts. Each equal part is called a quarter. 1 out of the 4 equal parts is shaded. That means - of the circle is shaded. We say one quarter of the circle is shaded. Four - quarters is a whole. Note: (1) One whole = 1 = 2 2 = 3 5 = 4 4 ... ... ... (2) Two quarters is a half.  LEARNING OBJECTIVE This lesson will help you to:  define fractions, numerator and denominator  identify fractions using objects and shapes  differentiate between equal and unequal parts Historical Preview  The word fraction actually comes from the Latin “fraction” which means to break.  It was the Arabs who added the line (drawn horizontally) which we now use to separate numerator and denominator.  Egyptians were one of the first groups to study fractions. Real Life Examples:
(3) 08 FRACTIONS  A year is divided in fraction of month is further divide into fraction of weeks. Half year is equal to 6-months.  In schools, the time is divided into equal fractions of periods for each subject.  QUICK CONCEPT REVIEW Halves and Quarters  Half Rahul and Akshay were hungry. They bought a muffin cake. They shared muffin cake by dividing it into two equal parts. When a whole object is divided into equal parts, then each part is called a fraction. In the above example. Part 1 and Part 2 are two fractions of muffin cake. Part 1 is one half and Part 2 is another half. Mis concept/Concept  Misconcept: A fraction such as ଷ ସ is a ‘quarter of three’  Concept: A fraction ଷ ସ means ‘three parts of quarter’? Numerator and Denominator A fraction is made up of two numbers which are divided by a line. The number that is written below the line is known as denominator.