Question

Q4. Multiply 2/15 by the reciprocal of 7/5.

Q5. Divide -1 by the reciprocal of 5/-11.

Q6. Write all the rational numbers that are equal to their reciprocals.


please tell there answers with step by step
please urgent its the question of class 8th kindly tell there answers​

Answer 1

Answer:

4) 2/15 X 5/7=2/21

5) -1/1 X -11/5=11/5

6) 1/1, 2/2, 3/3, 4/4, 5/5, 6/6, 7/7, 8/8, 9/9, 10/10

Step-by-step explanation:

Answer 2

Answer:

4.

Reciprocal of 7/5=5/7

..so,

$(2 \div 15) \times (5 \div 7) \\ = 10 \div 105 \\ = 2 \div 21$

i.e. 2/21 which is the required answer.