Question

What rational number should be added to $-\frac{3}{5}$ to get $2$.

Answer 1

Step : Finding the other number
Let, the required number be $x$.
According to question $x$ should be added to $-\frac{3}{5}$ to
get $2$.
$\therefore x+(-\frac{3}{5})=2$
$\Rightarrow x-\frac{3}{5}=2$
$x=2+\frac{3}{5}$
$x=\frac{2\times 5}{1\times 5}+\frac{3}{5}[\because \text{LCM of}1\text{and}5\text{is}5]$
$x=\frac{10}{5}+\frac{3}{5}=\frac{10+3}{5}=\frac{13}{5}=2\frac{3}{5}$

Hence, $2\frac{3}{5}$ should be added to get $2$.