Additive inverse of (-2/-5) is

Additive inverse of \frac { -2 }{ -5 } is
(a) \frac { 2 }{ 5 }
(b) \frac { 5 }{ 2 }
(c) \frac { 2 }{ -5 }
(d) \frac { 5 }{ -2 }

Solution:
ML Aggarwal Class 8 Solutions for ICSE Maths Chapter 1 Rational Numbers Objective Type Questions 4

Multiplicative inverse of \frac { -3 }{ 7 } is
(a) \frac { 7 }{ 3 }
(b) \frac { -7 }{ 3 }
(c) \frac { 3 }{ 7 }
(d) None of these

Solution:
ML Aggarwal Class 8 Solutions for ICSE Maths Chapter 1 Rational Numbers Objective Type Questions 5

Sum of a rational number and its additive inverse is
(a) 1
(b) 0
(c) -1
(d) None of these

Solution:
ML Aggarwal Class 8 Solutions for ICSE Maths Chapter 1 Rational Numbers Objective Type Questions 6

Rational numbers are not closed under
(a) addition
(b) subtraction
(c) multiplication
(d) division

Solution:
ML Aggarwal Class 8 Solutions for ICSE Maths Chapter 1 Rational Numbers Objective Type Questions 7

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