Question

1) using appropriate properties find: (i) -1/2×3/5+3/2-3/5×5/4​

Answer 1

Given: The term 3/13*4/5-7/5-4/5*5/13

To find: evaluate the following term.

Solution:

Now we have given the term as 3/13*4/5-7/5-4/5*5/13

Now we know the rule:

          BODMAS = Bracket of division multiplication addition and subtraction.

So applying this, we get:

          3/13 x 4/5 - 7/5 - 4/5 x 5/13

Now first multiplying, we get:

          12/65 - 7/5 - 4/13

Not first evaluating subtraction, we get:

          12/65 + (-91 - 20 / 65 )

          12/65 - 111 / 65

          12 - 111 / 65

          -99/65

Answer:

            So the value of the given term is -99/65.