Question

9. The product of two rational numbers is 15/22
If one of the numbers is -5/6
find the other.​

Answer 1

Let the rational number be x .

x × -5/6 = 15/22

x = 15/22 × -6/5

x = -18/22 = -9/11

Answer 2

Let the other number be x

According to the question

$\frac{ - 5}{6} \times x = \frac{15}{22} \\ x = \frac{ \frac{15}{22} }{ \frac{ - 5}{6} } \\ x = \frac{15}{22} \times \frac{ - 6}{5} \\ x = \frac{ - 9}{11}$