Question

What no. should be added to -1 so as to get 7 by 9

Answer 1

Answer:

16 /9

Step-by-step explanation:

Let the no, be X

- 1 + X =  7/9

      X = ( 7/9 ) + 1

         = 16 / 9

∴  16/ 9 should be added

Answer 2

Answer:

1.7333..

Step-by-step explanation:

divide 7 by 9

you will get 0.733..

now

-1=0.7333..

=1.73333answer

To check

let x=0.7333..___eq 1

so 10x=7.333...___eq 2

subtract equation 1 from equation 2

10x-x=7.333..-0.3333

9x=7

x=7/9