Question

the product of two rational number is -14/7 if one of the number be 7/9.find the other number​

Answer 1

Answer:

the other number = -18/7

Step-by-step explanation:

let the other rational number be X

$x \times ( \frac{7}{9} ) = \frac{- 14}{7} \\x = \frac{ (\frac{ - 14}{7} )}{ (\frac{7}{9} )} \\ x = \frac{ - 14}{7} \times \frac{9}{7} \\ x = \frac{ - 14 \times 9}{7 \times7 } \\ x = \frac{ - 18}{ \: \: 7}$