Question

sum of rational number 3/7 and it's multiplicative inverse is
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Answer 1

Answer:

Product of any number and the multiplicative inverse of that number always will be 1.

Let's check

Multiplicative inverse of -2/5 is -5/2.

Then -2/5×-5/2=1

So the answer will be 1.

Step-by-step explanation:

this is the method of doing

hope it will help you

Answer 2

Answer:

58/21

Step-by-step explanation:

Let the inverse be x

3/7x=0

3x=7

x=7/3

Now 3/7 +7/3

=9+49/21

=58/21

=2.761