Question

The product of 2 rational numbers is -28/81. if one of them is -2/3, then find the other

Answer 1

Answer:

Second number = 14/27

Step-by-step explanation:

product of two numbers = -28/81

first number = -2/3

Let second number = x

According to question,

-2/3 * x = -28 / 81

-2x / 3 = -28 / 81

cross multiplication,

-2x * 81 = -28 * 3

-162x = -84

x = -84 / -162

x = 14 / 27

Second number = 14/27