Question

3/20 + (- 7/20) + 9/20 + (- 11/20) Срочно пж

Answer 1

1)  3/20 + ( - 7/20 ) + 9/20 + ( - 11/20 ) = 3/20 - 7/20 + 9/20 - 11/20 =

    = - 4/20 + ( - 2/20 ) = - 8/20 = - 4/10 = - 0,4.

Ответ: - 0,4.