Question

multiplicative inverse of-5/7​

Answer 1

-7/5 will be multiplicative inverse of-5/7

Answer 2

Multiplicative inverse of -5/7​ is -7/5

Given:

• Number -5/7

To Find:

• Multiplicative inverse of -5/7​

Solution:

• Multiplicative inverse of any non zero number  is reciprocal of the number
• 1/a is the multiplicative inverse of a
• as a  * 1/a  =  1
• where a ≠ 0
• Product of a number and its multiplicative inverse is 1

Step 1:

Assume that multiplicative inverse of -5/7​ is a

Step 2:

Equate product of -5/7  and a to 1

(-5/7) a  = 1

Step 3:

Transpose -5/7 to RHS

a  = 1(-7/5)

a = -7/5

Hence, Multiplicative inverse of -5/7​ is -7/5