Question

হিসাব করে দেখি ৫/৭- এর 2 গুণের সঙ্গে কত যোগ করলে 3 পাবো​

Answer 1

To Find:

What should be added with 2 times $\frac{5}{7}$ so that it becomes equal to 3?

Solution:

The number will be equal to $3-2*\frac{5}{7}$

Now, $3-2*\frac{5}{7}$ $= \frac{21-10}{7} = \frac{11}{7}$