# Rational Numbers ICSE Class-7th Concise Selina Maths Solutions

**Rational Numbers ICSE Class-7th Concise** Selina Maths Solutions Chapter-2. We provide step by step Solutions of Exercise / lesson-2 **Rational Numbers** for** ICSE** **Class-7 Concise** Selina Mathematics. Our Solutions contain all type Questions with Exe-2 A, Exe-2 B, Exe-2 C and Exe-2 D to develop skill and confidence. Visit official Website **CISCE** for detail information about ICSE Board Class-7.

**Rational Numbers ICSE Class-7th Concise** Selina Maths Solutions Chapter-2

**–: Select Topics :–**

**EXERCISE 2 (A) ****Rational Numbers ICSE Class-7th Concise**

**Rational Numbers ICSE Class-7th Concise**

**Question 1 :-**

**Write down a rational number whose numerator is the largest number of two digits and denominator is the smallest number of four digits.**

**Answer:**

Largest two digit = 99

Smallest, number of four digit = 1000 Now numerator = 99 and denominator = 1000

∴ Rational number = 99/1000

**Question 2 :-**

**Write the numerator of each of the following rational numbers:**

**Answer:**

**Question 3 :-**

**Write the denominator of each of the following rational numbers:**

**Answer:**

**Question 4 :-**

**Write down a rational number numerator (-5) x (-4) and denominator (28 – 27) x (8 – 5).**

**Answer:**

**Question 5 :-**

**Answer:**

**Question 6 :-**

**Separate positive and negative rational numbers from the following :**

**Answer:**

** **

**Question 7 :-**

**Find three rational numbers equivalent to**

**Answer:**

**Question 8 :-**

**Which of the following are not rational numbers :**

**Answer:**

**Question 9 :-**

**Express each of the following integers as a rational number with denominator 7 :**

**(i) 5**

**(ii) -8**

**(iii) 0**

**(iv) -16**

**(v) 7**

**Answer:**

**Question 10 :-**

**Express 3/5**** as a rational number with denominator:**

**Answer:**

**Question 11 :-**

**Express 4/7**** as a rational number with numerator :**

**Answer:**

**Question 12 :-**

**Find x, such that:**

**Answer:**

**Question 13 :-**

**Express each of the following rational numbers to the lowest terms :**

**Answer:**

**Question 14 :-**

**Express each of the following rational numbers in the standard form.**

**Answer:**

**EXERCISE -2 (B) of Rational Numbers for ICSE Class-7th Concise selina **

**Question 1 :-**

**Mark the following pairs of rational numbers on the separate number lines ….**

**Answer:**

**Question 2 :-**

**Compare:**

**(i) 3/5 and 5/7**

**(ii) -7/2 and 5/2**

**(iii) -3 and 11/4**

**(iv) -3/2 and 0**

**(v) 0 and 3/4**

**(vi) 3 and -1**

**Answer:**

**Question 3 :-**

**Compare:……**

**(i) -1/4 and 0**

**(ii) 1/4 and 0**

**(iii) -3/8 and 2/5**

**(iv) -5/8 and 7/-12**

**(v) 5/-9 and -5/-9**

**(vi) -7/8 and 5/-6**

**(vii) 2/7 and 3/-8**

**(viii) -5/8 and 7/-12**

**Answer:**

**Question 4 :-**

**Arrange the given rational numbers in ascending order :**

**(i) 7/10, -11/-30 and 5/-15**

**(ii) 4/-9, -5/-12 and 2/-3**

**Answer:**

**Question 5 :-**

**Arrange the given rational numbers in descending order:**

**(i) 5/8, 13/-16 and -7/12**

**(ii) 3/-10, -13/-30 and 8/-20**

**Answer:**

**Question 6 :-**

**Fill in the blanks :**

**(i) 5/8 and 3/10 are on the ________ side of zero.**

**(ii) -5/8 and 3/10 are on the ________ side of zero**

**(iii) -5/8 and -3/10 are on the ________ side of zero.**

**(iv) 5/8 and -3/10 are on the ________ side of zero.**

**Answer:**

**EXERCISE 2 (C) Solutions of Rational Numbers for ICSE Class-7th Concise Selina Publishers**

**Question 1 :-**

**Add:**

**(i) **7/5 and 2/5

**(ii) ** -4/9 and 2/9

**(iii) **5/-12 and 1/12

**(iv)** 4/-15 and -7/-15

**(v) **-7/25 and 9/-25

**(vi) ** -7/26 and 7/-26

**Answer:**

**Question 2 :-**

**Add:**

**(i)** -2/5 and 3/7

**(ii) ** -5/6 and 4/9

**(iii) -3 and 2/3**

**(iv) -5/9 and 7/18**

**(v) -7/24 and -5/48**

**(vi) 1/-18 and 5/-27**

**(vii) -9/25 and 1/-75**

**(viii) -13/-16 and -11/24**

**(ix) -9/-16 and -11/8**

**Answer:**

**Question 3 :-**

**Evaluate:**

**Answer:**

**Question 4 :-**

**Evaluate:**

**Answer:**

**Question 5 :-**

**Subtract :**

**Answer:**

**Question 6 :-**

**Subtract :**

**Answer:**

**Question 7 :-**

**The sum of two rational numbers is 11/24 ****. If one of them is 3/8 ****, find the other.**

**Answer:**

**Question 8 :-**

**The sum of two rational numbers is -7/11 ****. If one of them is 13/24 ****, find the other.**

**Answer:**

**Question 9 :-**

**The sum of two rational numbers is -4. If one of them is -13/12**** , find the other.**

**Answer:**

**Question 10 :-**

**What should be added to -3/6 **** to get -11/24**** ?**

**Answer:**

**Question 11 :-**

**What should be added to -3/5**** to get 2?**

**Answer:**

**Question 12 :-**

**What should be subtracted from -4/5**** to get 1?**

**Answer:**

**Question 13 :-**

**The sum of two numbers is -6/5****. If one of them is -2, find the other.**

**Answer:**

**Question 14 :-**

**What should be added to -7/11**** to get 3/8****?**

**Answer:**

**Question 15 :-**

**What should be subtracted from 5/9 ****to get 9/5**** ?**

**Answer:**

**EXERCISE -2 (D) Rational Numbers Solved Questions of ICSE Class-7th Selina Publications Concise Maths.**

**Question 1 :-**

**Evaluate**:

**Answer:**

**Question 2 :-**

**Multiply:**

**Answer:**

**Question 3 :-**

**Evaluate:**

**Answer:**

**Question 4 :-**

**Find the cost of 3 1/2**** m cloth, if one metre cloth costs ₹325 1/2 ****.**

**Answer:**

**Question 5 :-**

**A bus is moving with a speed of 65 (1/2)**** km per hour. How much distance will it cover in 1 (1/3)**** hours.**

**Answer:**

**Question 6 :-**

**Divide:**

**Answer:**

**Question 7 :-**

**Evaluate:**

**Answer:**

**Question 8 :-**

**The product of two numbers is 14. If one of the numbers is -8/7 ****, find the other.**

**Answer:**

**Question 9 :-**

**The cost of 11 pens is ₹3 (2/3)****. Find the cost of one pen.**

**Answer:**

**Question 10 :-**

**If 6 identical articles can be bought for ₹2 (6/17)****. Find the cost of each article.**

**Answer:**

**Question 11 :-**

**By what number should -5/7**** be multiplied so that the product is -15/28**** ?**

**Answer:**

**Question 12 :-**

**By what number should -5/7**** be divided so -15/28 that the result is**** ?**

**Answer:**

**Question 13 :-**

**Evaluate :**

**Answer:**

**Question 14 :-**

**Seven equal piece are made out of a rope 5 of 21 (5/7) **** m. Find the length of each piece.**

**Answer:**

**EXERCISE- 2 (E) Rational Numbers ICSE Class-7th Concise**

**Question 1 :-**

**Evaluate:**

**Answer:**

**Question 2 :-**

**The sum of two rational numbers is -3/8 ****. If one of them is 3/16****, find the other,**

**Answer:**

**Question 3 :-**

**The sum of two rational numbers is -5. If one of them is -52/25**** , find the other.**

**Answer:**

**Question 4 :-**

**What rational number should be added -3/16 to **** to get 11/24**

**Answer:**

**Question 5 :-**

**What rational number should be added to -3/5 to get 2?**

**Answer:**

**Question 6 :-**

**What rational number should be subtracted from -5/12 to get 5/24**

**Answer:**

**Question 7 :-**

**What rational number should be subtracted from 5/8**** to get 8/5**** ?**

**Answer:**

**Question 8 :-**

**Evaluate:**

**Answer:**

**Question 9 :-**

**The product of two rational numbers is 24. If one of them is -36/11 ****, find the other.**

**Answer:**

**Question 10 :-**

**By what rational number should we multiply 20/-9**** ,so that the product may be -5/9**** ?**

**Answer:**

— End of **Rational Numbers**** **Solutions :–

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