Question

What should be added to-16/3 to make it 1/9

Answer 1

let the number to be added be x.
-16/3 + x=1/9
x=1/9+16/3
x=1/9+48/9
x=49/9
I hope it helps you

Answer 2

let the required no. be x.
so,
x+-16/3=1/9
x=1/9+16/3
x=1+48/9
x=49/9