Question

.What should be added to twice of the rational number -5/3 to get -9/7? ​

Answer 1

Answer:

let x be added

$x + 2( \frac{ - 5}{3} ) = \frac{ - 9}{7} \\ x = \frac{ - 9}{7} + \frac{10}{3} \\ = \frac{ - 27 + 70}{21} = \frac{53}{21}$