Inverse of Rational Numbers

Q. Write the additive inverse of the following:
a) $\frac{-6}{-5}$ b) $\frac{21}{112}$
[2 marks]

Q. The rational numbers whose multiplicative inverse is the number itself are:

1. 1
2. \N
3. -1
4. 2

Q. What is the reciprocal of -1/7?

1. -1
2. 1/7
3. -7
4. 7/1

Q.

The additive inverse of the rational number 1/6 is

1. -6

2. 1/6
3. -1/6

4. 6

Q. Additive inverse of $\frac{-2}{5}$ subtracted from 6 gives

1. $\frac{32}{5}$
2. $\frac{-32}{5}$
3. $\frac{28}{5}$
4. $\frac{-28}{5}$

Q. If a + b = 0, then what will be the additive inverse/negative of b?

1. a
2. -a
3. b
4. none of the above

Q.

Multiplicative inverse of a negative rational number is

1. a positive rational number

2. a negative rational number

3. 0

4. 1

Q.

What is the additive inverse of $\frac{2}{3}$?

1. $\frac{3}{2}$

2. 2

3. $-\frac{2}{3}$

4. 1

Q. The product of a number and its reciprocal is always 1.

1. False
2. True

Q. What is the reciprocal of 0?

1. 1
2. Undefined
3. 0
4. 2