Question

show that subtraction of rational numbers is Not associate using a=2/3,b=-1/5 and c=-31/10​

Answer 1

Answer:

a-(b-c)≠(a-b)-c

Step-by-step explanation:

Answer 2

We will learn about subtraction of rational numbers. If a/b and c/d are two rational numbers, then subtracting c/d from a/b means adding additive inverse (negative) of c/d to a/b. The subtracting of c/d from a/b is written as a/b - c/d.

Thus, we have

a/b - c/d = a/b + (-c/d), [Since additive inverse of c/d is -c/d]