Question

if a/b×c/d=1 then which of the following is incorrect?​

Answer 1

Answer:

For rational number, subtraction is not commutative.

i.e. p−q



=q−p.

∴

b

a

−

d

c

=

d

c

−

b

a

is not true.

Thus, it is an incorrect statement

Answer 2

Answer:

For rational number, subtraction is not commutative.

i.e. p−q≠q−p.

∴ a/b-c/d

=c/d-a/b is not true.

Thus, it is an incorrect statement.