((7/9-47/72): 1,25+(6/7-17/28)*(0,358-0,108)*1,6-19/25 - вопрос №307171179477212567172803580108161925 от жыландыыыы 11.10.2020 16:06

Question

Алгебра: ((7/9-47/72): 1,25+(6/7-17/28)*(0,358-0,108)*1,6-19/25

жыландыыыы · Answer

(7/9 - 47/72) : 1,25 + (6/7 - 17/28) * (0,358 - 0,108) * 1,6 - 19/25 =
= (56/72 - 47/72) : 5/4 + (24/28 - 17/28) * 0,25 * 1,6 - 19/25 =
= 9/72 * 4/5 + 7/28 * 1/4 * 8/5 - 19/25 =
= 36/360 + 1/4 * 8/20 - 19/25 =
= 1/10 + 8/80 - 19/25 =
= 0,1 + 0,1 - 0,76 =
= 0,2 - 0,76 = -0,56 = -14/25
((7/9-47/72): 1,25+(6/7-17/28)*(0,358-0,108)*1,6-19/25