Question

what should be substracted from -9/20 to get -1/5​

Answer 1

Step-by-step explanation:

assume the no. x and then subtract it from -9÷20 to get the answer

Answer 2

Answer:

(-9/20)-x=-1/5

(-9/20)+(-1/5)=x.

Solving the equation

-9×1+4×1/20=x

-9+4/20=x

-5/20=x

By cancellation process we will got the answer =- 1/4

Therefore - 1/4 should subtracted from - 9/20 to get - 1/5