Question

For all rational numbers a and b, which statement is always true?

Assertion (A): Division of rational numbers is not commutative. Reason (R): Division of rational numbers is not associative.

Using suitable rearrangement, find: \frac{3}{7}+\frac{-6}{11}+\frac{-8}{21}+\frac{5}{22}

Use the distributive property to simplify: \frac{4}{9}\times\frac{-3}{7}+\frac{4}{9}\times\frac{-4}{7}