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
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EXERCISE 2 (A) 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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