We know that additive inverse of a rational number a/b is (-a/b), such that a/b+(-a/b)=0 Additive inverse of 2/8 is -2/8 Class 8 Maths Chapter 1 Exercise 1.1 Solution in Video
We know that additive inverse of a rational number a/b is (-a/b), such that
a/b+(-a/b)=0
Additive inverse of 2/8 is -2/8
Class 8 Maths Chapter 1 Exercise 1.1 Solution in Video
Write the additive inverse of each of the following: 2/8
We know that additive inverse of a rational number a/b is (-a/b), such that a/b+(-a/b)=0 Additive inverse of 2/8 is -2/8 Class 8 Maths Chapter 1 Exercise 1.1 Solution in Video
We know that additive inverse of a rational number a/b is (-a/b), such that
a/b+(-a/b)=0
Additive inverse of 2/8 is -2/8
Class 8 Maths Chapter 1 Exercise 1.1 Solution in Video
See lessUsing appropriate properties find: (i) – 2/3×3/5+5/2-3/5×1/6 (ii) 2/5x (3/-7)-1/6×3/2+1/14×2/5
Class 8 Maths Chapter 1 Exercise 1.1 Solution in Video
Class 8 Maths Chapter 1 Exercise 1.1 Solution in Video
See lessUsing appropriate properties find: (i) – 2/3×3/5+5/2-3/5×1/6 (ii) 2/5x (3/-7)-1/6×3/2+1/14×2/5
(i) -2/3x3/5+5/2-3/5x1/6 = -2/3x3/5-3/5x1/6+5/2 = 3/5 (-2/3-1/6) + 5/2 = 3/5 (-4-4)/6) + 5/2 = 3/5x-5/6+5/2 = -1/2+5/2 = -1+5/2 = 4/2 = 2 (ii) 2/5x(3/-7)-1/6×3/2+1/14×2/5 = 2/5x(-3/7)+1/14x2/5-1/6x3/2 = 2/5x (-3/7+1/14)-1/4 = 2/5x(-6+1/14)-1/4=2/5x-5/14-1/4 = -1/7-1/4 = -4-7/28 = -11/8
(i) -2/3×3/5+5/2-3/5×1/6 = -2/3×3/5-3/5×1/6+5/2
= 3/5 (-2/3-1/6) + 5/2
= 3/5 (-4-4)/6) + 5/2 = 3/5x-5/6+5/2
= -1/2+5/2 = -1+5/2 = 4/2 = 2
(ii) 2/5x(3/-7)-1/6×3/2+1/14×2/5
= 2/5x(-3/7)+1/14×2/5-1/6×3/2
= 2/5x (-3/7+1/14)-1/4
= 2/5x(-6+1/14)-1/4=2/5x-5/14-1/4
= -1/7-1/4 = -4-7/28 = -11/8
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