Question

Find the value of: [- 2/7 - 5/7][8/3 + 4/9]​

Answer 1

Answer:

The answer of the question is =-28/9

Step-by-step explanation:

[-2/7 -5/7][8/3+4/9]

=-[2/7+5/7][8/3+4/9]

Now we have to find the lcm of 7,7 and 3,9

So the lcm of 7,7 is =7

And the lcm of 3,9 is = 9

Now from the given expression we have,

=-[((2×1) +(5×1)) /7] [((8×3) +(4×1)) /9]

=-[(2+5) /7] [(24+4) /9]

=-[7/7][28/9] = -1×(28/9) =-28/9