(2 5/18-5 1/12+1 2/9)*(0,81: 0,4) -3,075: 1,5+0,5*(0,04-3 - вопрос №25185112129081043075150500434255475098 от nfedorova868 27.02.2021 05:01

Question

Математика: (2 5/18-5 1/12+1 2/9)*(0,81: 0,4) -3,075: 1,5+0,5*(0,04-3 4/25) решите надо !

nfedorova868 · Answer

(2 5/18 - 5 1/12 + 1 2/9) * (0,81 : 0.4) = (-2 + 15 / 36) * 81 / 40 =
= -1 7/12 * 81/40 = -19/12 * 81/40 = - 19 * 81 : (12 * 40) =
= -1539 / 480 = -3 33/160
-3.075:1.5 + 0.5*(0.04 - 3 4/25) = -2.05 + (1/25 - 3 4/25) =
= -2.05 - 3 3/25 = -2.05 - 3.12 = -517