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RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev

RD Sharma Solutions for Class 9 Mathematics

Class 9 : RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev

The document RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev is a part of the Class 9 Course RD Sharma Solutions for Class 9 Mathematics.

All you need of Class 9 at this link: Class 9

Q1. Express each of the following decimals in the form of rational number.

(i) 0.39

(ii) 0.750

(iii) 2.15

(iv) 7.010

(v) 9.90

(vi) 1.0001

Solution:

(i) Given,

0.39 = 39/100

(ii) Given,

0.750 = 750/1000

(iii) Given,

2.15 = 215/100

(iv) Given,9.101

(iv) Given,

7.010 = 7010/1000

(v) Given,

9.90 = 990/100

(vi) Given,

1.0001 = 10001/10000

Q2. Express each of the following decimals in the form of rational number (p/q)

(i)

(ii)

Solution:

(i) Let x = RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev

Then, x = RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev = 0.444… ___ (a)

Multiplying both sides of equation (a) by 10, we get,

10x = 4.44.... ___ (b)

Subtracting equation (1) by (2)

9x = 4

x = 4/9

Hence, RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev = x = 4/9

(ii) Let x = RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev

Then, x = RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev = 0.3737… ___ (a)

Multiplying both sides of equation (a) by 100, we get,

100 x = 37.37.... ___ (b)

Subtracting equation (1) by (2)

99 x = 37

x = 37/99

Hence, RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev = x = 37/99

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RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev notes for Class 9 is made by best teachers who have written some of the best books of Class 9. It has gotten 560 views and also has 4.9 rating. You can download Free RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev pdf from EduRev by using search above. You can also find RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev ppt and other Class 9 slides as well. If you want RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev Tests & Videos, you can search for the same too. Class 9 RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev Summary and Exercise are very important for perfect preparation. You can see some RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev sample questions with examples at the bottom of this page. Complete RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev chapter (including extra questions, long questions, short questions, mcq) can be found on EduRev, you can check out Class 9 lecture & lessons summary in the same course for Class 9 Syllabus. EduRev is like a wikipedia just for education and the RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev images and diagram are even better than Byjus! Do check out the sample questions of RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev for Class 9, the answers and examples explain the meaning of chapter in the best manner. This is your solution of RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev search giving you solved answers for the same. To Study RD Sharma Solutions Ex-1.3, Number System, Class 9, Maths Class 9 Notes | EduRev for Class 9 this is your one stop solution.

RD Sharma Solutions for Class 9 Mathematics

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