Question

solve it please
it's urgent​

Answer 1

Answer:

(c) Addition of rational numbers is associative

Step-by-step explanation:

Given that,

$\frac{ - 2}{3} + \frac{3}{5} = \frac{3}{5} + \frac{ - 2}{3}$

Solution:

LHS:

$\frac{ - 2}{3} + \frac{3}{5}$

$= \frac{ - 10 + 9}{15}$

$= \frac{ - 1}{5}$

RHS:

$\frac{3}{5} + \frac{ - 2}{3}$

$= \frac{9 + ( - 10)}{15}$

$= \frac{ - 1}{5}$

Hence,

LHS = RHS

NOW,

As we know that,

The way in which all the numbers are grouped in a additional problem in such a way, that does not change the sum is known as associative property.

We, have proved in the above condition that

LHS = RHS with the property of addition where the sum on both the sides remains same.

Hence, the rational number is in associative property.