Inverse of Rational Numbers

Q. The sum of the multiplicative inverse of $\frac{5}{7}$ and additive inverse of $\frac{7}{5}$ equals

1. 0
2. 1
3. $\frac{5}{7}$
4. $\frac{7}{5}$

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

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

Q. Find the multiplicative inverse of $\frac{4}{7}$.

1. $\frac{-4}{7}$
2. $\frac{7}{4}$
3. $\frac{-7}{4}$
4. $\frac{4}{7}$

Q.

Write the additive inverse of each of the following:

(i) (ii) (iii) (iv) (v)

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.

Which of the following will not represent zero:

1. $1+0$

2. $0x0$

3. $\frac{0}{2}$

4. $\frac{10-10}{2}$

Q.

What is additive inverse of 5/8

Q. The sum of additive inverse of 5 and additive inverse of -2 is

1. 3
2. -3
3. -7
4. $\frac{-3}{10}$

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

Q. What is the multiplicative inverse of $-\frac{11}{8}$?

1. $\frac{11}{8}$
2. $\frac{8}{11}$
3. $\frac{-8}{11}$
4. $\frac{-11}{8}$

Q. Multiply the reciprocals of $\frac{-5}{2},\frac{4}{35}$ and add the additive inverse of $\frac{3}{2}$ to the product. Find the result.

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

Q.

State True or False, whether $\frac{9}{22}>0$.

1. True

2. False

Q. The sum of additive inverse of 3 and additive inverse of -1 is __.

1. 2
2. -2
3. -1
4. 1

Q. Multiply the multiplicative inverse of $\frac{3}{5}$ and $\frac{4}{9}$ and add the additive inverse of $\frac{11}{4}$ to the product. Find the result.

1. 1
2. 2
3. 0
4. -1

Q.

State True or False, whether $(1-\frac{4}{3})>0$

1. True

2. False

Q. 2/5*(-3/7)-1/6*3/2+1/14*2/5

Q.

Is $\frac{-4}{3}\ge \frac{24}{36}$?

1. True

2. False

Q. Dear sir/Ma'am
I have a problem in this question
Q. Find a number which is 1 more than its additive inverse?

Q. 12. Evaluate 15/10+20+40-5-80 Where 5=2.236 and 10=3.162

Q.

Subtract the following

$-16-(-17)$

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. If b is the reciprocal of rational number a, then what will be the value of $\frac{b}{a}$ in terms of a?

1. $\frac{b}{a}$
2. $\frac{1}{a}$
3. $\frac{1}{a^2}$
4. None of the above

Q.

Which of the following will not represent zero?

1. $1+0$

2. $0\times 0$

3. $\frac{0}{2}$

4. $\frac{(10-10)}{2}$

Q. What is multiplicative inverse and what is multiplicative identity?

Q.

Subtract the following

$20-(-32)$

Q. Match the negatives of the following numbers:-

1. $\frac{2}{7}$
2. $\frac{198}{3}$
3. -31
4. $\frac{-89}{100}$

Q. Find the multiplicative inverse of the following:
a) $\frac{-5}{8}\times \frac{-3}{7}$ b) $\frac{1}{5}$ c) $3\frac{1}{3}$
[3 marks]

Q. Find the reciprocal of the rational number $\left(\frac{1}{3}\right)+{\left(\frac{4}{5}\right)}^{-3}$

Q.

The multiplicative inverse of $\frac{3}{-4}$is_________

Q.

What is the product obtained when the multiplicative inverse of 3⁵is multiplied with the additive inverse of 2⁵?