Question

9 / 15 - _____ = 2 / 5​

Answer 1

• As per the data given in the question, we have to determine the required number.

       Given data:- $\frac{9}{15}-?=\frac{2}{5}$

       To find the required number.

       solution:-

       Let the required number be $x.$

       As per the question,

       $\Rightarrow \frac{9}{15}-x=\frac{2}{5}\\\Rightarrow -x=\frac{2}{5}-\frac{9}{15}\\\Rightarrow -x=\frac{2\times3-9\times1}{15}\\\Rightarrow -x=\frac{6-9}{15}\\\Rightarrow -x=\frac{-3}{15}\\\Rightarrow x=\frac{1}{5}$

      Hence, the required number will be $\frac{1}{5}$ .

Answer 2

As per the data given in the question,

We have to determine the required number which should be subtracted from 9/15 to get 2/5.

So, for finding the required number, we will 2/5 from 9/15.  

Let the required number be x.

As per the question,

$\begin{array}{l}\Rightarrow \frac{9}{15}-x=\frac{2}{5} \\\Rightarrow-x=\frac{2}{5}-\frac{9}{15} \\\Rightarrow-x=\frac{2 \times 3-9 \times 1}{15} \\\Rightarrow-x=\frac{6-9}{15} \\\Rightarrow-x=\frac{-3}{15} \\\Rightarrow x=\frac{1}{5}\end{array}$

Hence, the required number will be $\frac{1}{5}$