Question

plz all the Q with statements

Answer 1

1.For all rational numbers additive identity is zero. But if you want additive inverse, here it is. The product is -6/35. Additive inverse is 6/35.

2.Additive inverse of -1/2 is 1/2. Reciprocal of 2 or 2/1 is 1/2. 

Sum = 1/2 + 1/2 = (1+1)/2 = 2/2 =1

3. For 1 & -1. Because their reciprocals are equal to the actual numbers. So no need to reciprocal

4.3/-2 = -3/2. LCM of 3 & 2 is 6. 2/3 x 2/2 = 4/6 & -3/2 x 3/3 = -9/6

  So, 4/6 + (-9/6) = 4/6 - 9/6 = (4-9)/6 = -5/6. Multiplicative inverse of this is -6/5

5.First let us find the sum. 2/3 + (-1/3) = 2/3 - 1/3 =  (2-1)3 = 1/3.
  Mod of 1/3 = Mod of 1/3
    1/3            =  1/3