Question

решите букву А) пжалуйста

Answer 1

1 2/15 - 2 3/10 - 1 1/6 = 1 8/60 - 2 18/60 - 1 10/60 = 1 8/60 - 3 28/60 = 68/60 - 208/60 =
= -140/60 = - 2 20/60 = -2 1/3