Question

what should be subtracted from -3/5 to get -2?

Answer 1

Let x should be subtracted. Then

$- \frac{3}{5}-x = -2\\ \\ \Rightarrow -x = -2 + \frac{3}{5}\\ \\ \Rightarrow -x = \frac{-10+3}{5}\\ \\ \Rightarrow -x = -\frac{7}{5}\\ \\ \Rightarrow x = \frac{7}{5}$

So $\frac{7}{5}$ should be subtracted from $- \frac{3}{5}$ to get -2.

Answer 2

-3/5-x=-2
-x=-2/1-3/5
-x=10-3 /5
-x=-7/5
x=7/5