The document RD Sharma Solutions - Chapter 1 - Rational Numbers (Ex - 1.3), Class 8, Maths Class 8 Notes | EduRev is a part of the Class 8 Course RD Sharma Solutions for Class 8 Mathematics.

All you need of Class 8 at this link: Class 8

**Question 1: Subtract the first rational number from the second in each of the following:**

**Answer :**

**(i) **

**(ii) **

**(iii) **

**(iv) **

**(v) **

**(vi) **

**(vii) **

**(viii) **

**Question 2: Evaluate each of the following:**

**Answer :**

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

(ix)

(x)

(xi)

**Question 3: The sum of the two numbers is 5/9.59. If one of the numbers is 1/3,13, find the other.****Answer :**

It is given that the sum of two numbers is 5/9, where one of the numbers is 13.Let the other number be x.** **

**Question 4: The sum of two numbers is -1/3.-13. If one of the numbers is -12/3,-123, find the other.**

**Answer :** It is given that the sum of two numbers is-1/3, where one of the numbers is âˆ’12/3.Let the other number be x.

**Question 5: The sum of two numbers is -4/3.-43. If one of the numbers is âˆ’5, find the other.**

**Answer :**

It is given that the sum of two numbers is âˆ’4/3, where one of the numbers is âˆ’5.Let the other number be x.

**Question 6: The sum of two rational numbers is âˆ’8. If one of the numbers is -15/7,-157, find the other.Answer :**

It is given that the sum of two rational numbers is âˆ’8, where one of the numbers is âˆ’15/7.Let the other rational number be x.** **

**Therefore,theotherrationalnumberis -41/7. **

**Question 7: What should be added to -7/8 so as to get 5/9?**

**Answer : **Let x be added to -7/8 so as to get 5/9.

**Question 8: What number should be added to -5/11-511 so as to get 26/33 ?**

**Answer** : Let x be added.

**Question 9: What number should be added to -5/7 to get -2/3?**

**Answer **: Let x be added.

**Question 10: What number should be subtracted from -5/3 to get 5/6?****Answer :** Let x be subtracted.

**Question 11:What number should be subtracted from 3/7 to get 5/4?**

**Answer :** Let, x be subtracted.

**Question 12: What should be added to (2/3+3/5) to get âˆ’2/15?Answer :** Let x be added.

**Question 13: What should be added to (1/2+1/3+1/5) to get 3?Answer :** Let x be added.

**Question 14:What should be subtracted from (3/4âˆ’2/3) to get âˆ’1/6?Answer :** Let x be subtracted.

**Question 15: Fill in the blanks:**

**Answer :**

**(i) **

**(ii)**

**(iii) **

**(iv) **