Question

Taking = 2/3 , = 4/5 , = 1/2 ; verify that addition is associative whereas  subtraction is not associative for rational numbers.​

Answer 1

Step-by-step explanation:

2/3+4/5=1/2

,

4/5+1/2=2/3

and

2/3+1/2=4/5

therefore , addition is associative for rational nos.