Rational numbers-grade 8

is the multiplicative identity for rational numbrers

The reciprocal of 0 is

• 0

• 1

• Not defined

Reciprocal of -10/5

The Additive inverse of 1/11× −3/5

• -3/55

• 3/55

• 55/3

• -55/3

5/9×1/6 + 1/6×2/15

is 0.3 the multiplicative inverse of 3 1/3

• yes

• no

Select incorrect answer :For whole numbers

• Addition is associative

• Subtraction is associative

• Multiplication is associative

Add  1/2   and -2/15

• 11/30

• -11/30

• 5/6

• 1/20

What is the identity of ADDITION for Rational numbers.

What will be the additive inverse of (-7/9​ )

• 7/9

• -7/9

• 9/7

• -9/7