Verified Answer :

First work out the bracket: -1 2/3, make this into one fraction 
                                          a b/c = (ac+b)/c 
                                          ignore the negative for now, so 3+2= 5 so your                                             fraction is -5/3
Then multiply: 3/5 x -5/3 = -15/15 so your answer is -1

-1 2/3 = - (13+2/3)
          = - (3+2/3)
          = -5/3

Now lets multiply
= 3/5 -5/3
= 3-5 / 515
= -15/15
= -1

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