8th Rational numbers

All integers are also

• natural numbers

• whole numbers

• Rational numbers

• none

-1/2 is a

• natural number

• whole number

• rational number

• none

Additive inverse of 2/5 is

• -1/2

• -2/5

• 5/2

• 0

Multiplicative inverse of 2/5 is

• 2/5

• 5/2

• -2/5

• -5/2

which is not define

• 1/5

• 0/4

• 100/0

• 5/6

2/3 × -6/5

• 3/2

• 6/5

• -4/5

• none

Associative property under addition

• a+(b+c) =(a+b)+c

• a-(b-c)= (a-b)-c

• (a×b)×c =a ×(b×c)

• a÷(b÷c)= (a÷b)÷c

1 ×.......... = 11/9

• 9/11

• 11/9

• 1

• -11/9

2/3 +.......=0

• 2/3

• -2/3

• 3/2

• -3/2

2/5 + 3/5

• 1

• 0

• 2/3

• 3/5