"Adding and subtracting fractions with the same denominator" Addition and subtraction of fractions PPT

Description

"Adding and subtracting fractions with the same denominator" Addition and subtraction of fractions PPT

Part One: Exciting Introduction

I ate 3 pieces of cake.

I ate 1 piece of cake.

(1) What mathematical information did you get from the picture?

(2) Based on this information, what mathematical questions can you ask?

One piece of cake is divided into 8 equal portions.

Addition and subtraction of fractions with the same denominator PPT, part 2 content: knowledge explanation

How many cakes did dad and mom eat in total?

The fraction units of 3/8 and 1/8 are the same, both are 1/8.

You can add 3 1/8s and 1 1/8 directly.

The calculation result can be reduced to the simplest fraction.

Addition and subtraction of fractions with the same denominator PPT, part 3: practice and consolidation

1. List the formula and calculate.

2. Calculate.

3. The various types of books in the Chunlei Primary School library are as shown on the right.

(1) What percentage of books on social sciences, natural sciences and literature and arts account for the total number of books?

(2) What percentage of the total number of books do other books account for?

Addition and subtraction of fractions with the same denominator PPT, part 4 content: knowledge summary

Adding and subtracting fractions with the same denominator

01 When adding and subtracting fractions with the same denominator, the denominator remains unchanged and only the numerators are added and subtracted.

02 The result of calculation can be reduced to the simplest fraction.

Keywords: Free download of PPT courseware for mathematics in the second volume of the fifth grade of the People's Education Press, PPT download of addition and subtraction of fractions with the same denominator, PPT download of addition and subtraction of fractions, .PPT format;

For more information about the PPT courseware "Addition and Subtraction of Fractions with the Same Denominator, Adding and Subtracting Fractions with the Same Denominator", please click on the Addition and Subtraction of Fractions PPT, Adding and Subtracting Fractions with the Same Denominator PPT tag.

"Adding and subtracting fractions with the same denominator" Addition and subtraction of fractions PPT download:

"Adding and Subtracting Fractions with the Same Denominator" Addition and Subtraction of Fractions PPT Download Part One: Learning Objectives 1. Understand the meaning of adding and subtracting fractions, master the calculation methods of adding and subtracting fractions with the same denominator and be able to perform calculations correctly. (Key points) 2. Understand fractions with the same denominator..

"Adding and subtracting fractions with the same denominator" PPT courseware for preliminary understanding of fractions:

"Adding and Subtracting Fractions with the Same Denominator" Preliminary Understanding of Fractions PPT Courseware Review Fill in the Blanks 1: 3/8 means dividing the unit 1 evenly into ( ) parts, indicating the ( ) parts. Its fractional unit is ( ), and there are ( ) ( ) in it. Review fill-in-the-blank 2: (1) 7/8 points...

"Simple Addition and Subtraction of Fractions with Same Denominators" Preliminary Understanding of Fractions PPT Courseware 2:

"Simple Addition and Subtraction of Fractions with Same Denominators" Preliminary Understanding of Fractions PPT Courseware 2 Learning Objectives 1. Combined with specific situations, students can use the knowledge of addition and subtraction of fractions with the same denominator to solve some simple practical problems in life, and cultivate students' ability to analyze and solve problems. 2..

File Info

Update Time: 2024-11-21

This template belongs to Mathematics courseware People's Education Press Fifth Grade Mathematics Volume 2 industry PPT template

Preview