Rational Numbers Class- 7th RS Aggarwal Exe-4 C Goyal Brothers ICSE Math Solution . We provide step by step Solutions of lesson-4 Rational Numbers for ICSE Class-7 Foundation RS Aggarwal Mathematics of Goyal Brothers Prakashan . Our Solutions contain all type Questions of Exe-4 C to develop skill and confidence. Visit official Website CISCE for detail information about ICSE Board Class-7 Mathematics.
Rational Numbers Class- 7th RS Aggarwal Exe-4 C Goyal Brothers ICSE Math Solution
Board | ICSE |
Publications | Goyal brothers Prakashan |
Subject | Maths |
Class | 7th |
Chapter-4 | Rational Numbers |
Writer | RS Aggrawal |
Book Name | Foundation |
Topics | Solution of Exe-4 C |
Academic Session | 2023 – 2024 |
Exercise – 4 C
Rational Numbers Class- 7th RS Aggarwal Exe-4 C Goyal Brothers ICSE Math Solution
1. Add the following rational numbers :
(i) (5/11) and (4/11)
Solution: (5/11) and (4/11)
(5/11) + (4/11)
= (5 + 4)/11
= (9/11)
(ii) (-3/8) and (5/8)
Solution: (-3/8) and (5/8)
(-3/8) + (5/8)
(-3 + 5)/8
= (2/8)
(iii) (-6/13) and (8/13)
Solution: (-6/13) and (8/13)
(-6/13) + (8/13)
= (-6 + 8)/13
= (2/13)
(iv) (-8/15) and (-7/15)
Solution: (-8/15) and (-7/15)
(-8/15) + (-7/15)
= ((-8) + (-7))/15
= (-8 – 7)/15
= (-15/15)
(v) (-13/20) and (17/20)
Solution: (-13/20) and (17/20)
(-13/20) + (17/20)
= (-13 + 17)/20
= (4/20)
(vi) (-3/8) and (5/-8)
Solution: (-3/8) and (5/-8)
(-3/8) + (5/-8)
= (-3 + 5)/(-8)
= (2/-8)
2. Add the following rational numbers :
(i) (-2/3) and (3/4)
Solution: (-2/3) and (3/4)
= (-8 + 9)/12
= (1/12)
(ii) (-4/9) and (5/6)
Solution: (-4/9) and (5/6)
= (-8 + 15)/18
= (7/18)
(iii) (-5/18) and (11/27)
Solution: (-5/18) and (11/27)
= (-15 + 22)/54
= (7/54)
(iv) (-7/12) and (-5/24)
Solution: (-7/12) and (-5/24)
= (-14 + (-5)/24
= (-14 – 5)/24
= (-19/24)
(v) (-1/18) and (-7/27)
Solution: (-1/18) and (-7/27)
= (-3 + (-14)/54
= (-3 -14)/54
= (-17/54)
(vi) (21/-4) and (-11/8)
Solution: (21/-4) and (-11/8)
= (-42 + (-11)/8
= (-42 – 11)/8
= (-53/8)
3. Evaluate :
(i) (2/-3) + (-4/9)
Solution: (2/-3) + (-4/9)
= ((-6) + (-4))/9
= (-6 – 4)/9
= (-10/9)
(ii) (-1/2) + (-3/4)
Solution: (-1/2) + (-3/4)
= ((-2) + (-3))/4
= (-2 – 3)/4
= (-5/4)
(iii) (7/-9) + (-5/6)
Solution: (7/-9) + (-5/6)
= ((-14) + (-15)/18
= (-14 – 15)/18
= (-29/18)
(iv) 2 + (-3/4)
Solution: 2 + (-3/4)
= (2/1) + (-3/4)
= (8 – 3)/4
= (5/4)
(v) 3 + (-5/6)
Solution: 3 + (-5/6)
= (3/1) + (-5/6)
= (18 + (-5))/6
= (18 – 5)/6
= (13/6)
(vi) (-4) + (2/3)
Solution: (-4) + (2/3)
= (-4/1) + (2/3)
= (-12 + 2)/3
= (-10/3)
4. Evaluate :
(i) (-3/8) + (5/8) + (7/8)
Solution: (-3/8) + (5/8) + (7/8)
= ((-3) + 5 + 7)/8
= ((-3) + 12)/8
= (9/8)
(ii) (11/3) + (-5/3) + (-2/3)
Solution: (11/3) + (-5/3) + (-2/3)
= (11 – 5 – 2)/3
= (11 – 7)/3
= (4/3)
(iii) (-1) + (2/-3) + (5/6)
Solution: (-1) + (2/-3) + (5/6)
= ((-6) + (-4) + 5)/6
= (-6 – 4 + 5)/6
= (-10 + 5)/6
= (-5/6)
(iv) (7/26) + (-11/13) + 2
Solution: (7/26) + (-11/13) + 2
= (7 – 22 + 52)/26
= (59 – 24)/26
= (37/26)
(v) 3 + (-7/8) + (-3/4)
Solution: 3 + (-7/8) + (-3/4)
(3/1) + (-7/8) + (-3/4)
= (24 – 7 – 6)/8
= (24 – 13)/8
= (11/8)
(vi) (-13/8) + (7/16) + (-3/4)
Solution: (-13/8) + (7/16) + (-3/4)
= ((-26) + 7 – 12)/16
= (-38 + 7)/16
= (-31/16)
— : end of Rational Numbers Class- 7th RS Aggarwal Exe-4 C Goyal Brothers ICSE Math Solution:–
Return to- ICSE Class -7 RS Aggarwal Goyal Brothers Math Solutions
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