Question

1/_+3/10=5/10 what is in bracket​

Answer 1

$\frac{1}{x} + \frac{3}{10} = \frac{5}{10} \\ \\ \frac{1}{x} = \frac{5}{10} - \frac{3}{10} \\ \\ \frac{1}{x} = \frac{5 - 3}{10} \\ \\ \frac{1}{x} = \frac{2}{10} \\ \\ \frac{1}{x } = \frac{1}{5} \\ \\ x = 5$

So, the number in the bracket is 5

Verification :

$\frac{1}{5} + \frac{3}{10} = \frac{5}{10} \\ \\ \frac{2 + 3}{10} = \frac{5}{10} \\ \\ \frac{5}{10} = \frac{5}{10}$