Question

state whether the following are true or false subtraction is not associative for rational numbers

Answer 1

Answer:

Let us take three numbers 5/4,3/4 and 1/4,

Now

5/4−(3/4−1/4)

=5/4−2/4=3/4

And we know that,

(5/4−3/4)−1/4

=2/4−1/4=1/4

Since,

3/4=−1/4

Therefore, the given statement is true.