What number should be subtracted the sum from the product of 2 /7 and 3 /8 to get −3 /7 ?​

Answers (1)

Assume the number x should be substracted from 2/7 x 3/8 to get -3/7.

x - (2/7)(3/8) = -3/7

x = -3/7 + 3/(28)

   = (-12 + 3)/28 

  = -9/28

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