A school is organising a maths fair, and students are creating interactive displays to demonstrate various properties of rational numbers. Three students, Priya, Rohan, and Samira, are working on a display that highlights the commutative and distributive properties. They've created several examples and are discussing how these properties simplify calculations.
1. Priya is demonstrating the commutative property of addition with rational numbers. She shows the following equation: \(\frac{1}{3}+ \frac{-2}{5} = \frac{-2}{5} + \frac{1}{3}\). Which statement best describes the commutative property of addition?
2. Rohan writes: \(\frac{-3}{7} \times \frac{4}{9} = \frac{4}{9} \times \frac{-3}{7}\). What does this illustrate?
3. Which of the following equations demonstrates the distributive property of multiplication over addition of rational numbers?