Question

please give correct answer​

Answer 1

Step-by-step explanation:

1. (I) 0 ; (II) The number itself ; (III) 0 ; (IV) 1
2. (I) 0 ; (II) 1 ; (III) 1, (-1)
3. (I) -1/2 + [(-4/3)+3/7] = [(-1/2)+3/7]+(-4/3) As it has same fractions in both sides they are equal. ; (II) They are equal as they have same fractions on ether sides.
4. after simplification, (-14/3)×1/5×(-1/7)×15/4

(-14/15) × (-15/21)

(-14/1) × (-1/21)

ans: 14/21

5. x * (-28/81) = -2/3

X = (-2/3) × (-81/28)

X = (-1) × (-27/14)

x = 27/14

6. (I) commutative property ; (II) commutative property

7. 1

8. (I) (-12/35) + 12/35 = 0/35 (not defined)

(II) 5/12 + 1/12 = 6/12