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CBSE Class 7 Maths Chapter 2 Fractions and Decimals Revision Notes

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CBSE Class 7 Maths Chapter 2 Fractions and Decimals Revision Notes

 

If you are looking forward to scoring excellent marks in your Class 7 Maths Exams then it becomes very significant to understand the importance of Revision. Revision is very important as it helps you remember all the important chapters and co-related concepts that you have learned earlier and for the purpose of Revision, Revision Notes are always considered the best as they make your learning easy and convenient.

Chapter 2 of CBSE Class 7 Maths is Fractions and Decimals. Swiflearn offers the best and most reliable CBSE Class 7 Maths Chapter 2 Fractions and Decimals Revision Notes that will make students understand all the important topics & concepts of this chapter and will help them in higher studies also. Free CBSE Class 7 Maths Chapter 2 Fractions and Decimals Revision Notes provided here are prepared under the auspices of our Excellent Teachers keeping in mind the latest CBSE guidelines. 

CBSE Class 7 Maths Chapter 2 Fractions and Decimals Revision Notes are one of the most important pieces of study material that students can use as it will make their learning convenient and will also save them a lot of time. Students can download CBSE Class 7 Maths Chapter 2 Fractions and Decimals Revision Notes in PDF format, use them to revise all their previously learned concepts, and hence score better in their exams.

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Introduction

 

A fraction is written in the given form:

Fraction = numerator /denominator 

Where, denominator ≠ 0

 

Example: 2/3, here 2 is the numerator and 3 is the denominator.

 

 

Types of Fractions

 

Proper fractions:

Fraction in which numerator is smaller than the denominator.

Proper fractions are always greater than 0 and less than 1.

Example: 2/3, 6/8, 11/44

 

Improper fractions:

 Have a numerator that is greater than or equal to the denominator.

Improper fractions are greater or equal to 1.

Example: 5/3, 7/4, 11/5

 

Mixed fractions:

Combination of a whole number and a proper fraction gives us a fixed fraction. 

 

Like fractions:

 Fractions having same denominator are called like fractions.

1/2, 3/2, 11/2   are like fractions.

 

Unlike fractions:

Fractions having different denominators are called unlike fractions.

5/2, 6/5, 13/9   are unlike fractions.

 

Equivalent fractions:

Fractions which are proportional to each other are called equivalent fractions.

1/2, 2/4, 3/6   are equivalent fractions.

 

 

Decimals

 

Fractions having denominator in multiple of 10 like 100, 1000, etc. can be expressed in a more simplified form.

 

3/10 = 0.3

182/100 = 1.82

0.3, 1.82 are decimal fractions or decimal numbers.

 

Multiplication of Decimals

 

Multiplying decimal number with the multiple of 10 

The product will look similar to multiplicand except the position of decimal point.

Decimal point will shift to right by as much place as there are zeros in multiplier.

For example 

12.53 x 10 =125.3

12.53 x 100 = 1253.0

 

Multiplying a whole number with a decimal number

The decimal place remains same as it was in the original decimal number.

For example 

12.5 x 5 =62.5

 

Multiplying a decimal number with another decimal number

The decimal place of the product will be equal to the sum of the decimal places of both the numbers.

For example 

1.5 x 0.5 =0.75 

 

Division of Decimal Numbers

 

Dividing the decimal number by multiple of 10  

We will transfer the decimal point to the left by as much place as there are zeroes in the multiplier.

 

For example

12.5/10 = 1.25

761.1/100 = 7.611

 

Dividing the decimal number by a whole number

It can be done in the given manner or by division method.

 

 

 

CBSE Class 7 Maths Chapter 2 Fractions and Decimals Revision Notes PDF

 

 

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