Question

what should be added to 11 upon 5 to get 52 upon 7​

Answer 1

$let \: the \: number \: be \: x \\ then \\ \frac{11}{5} + x = \frac{52}{7} \\ x = \frac{52}{7} - \frac{11}{5} \\ \: \: \: \: = \frac{260 - 77}{35} = \frac{183}{35}$