2целая 5/8-2 целая 5/14*2/3 (3 целая 1/12+4,375): - вопрос №2582514233112437519894096026 от malkinzene 27.01.2020 16:39

Question

Алгебра: 2целая 5/8-2 целая 5/14*2/3 (3 целая 1/12+4,375): 19 целых 8/9

malkinzene · Answer

2 5/8-2 5/14*2/3 2 5/8-33/14*2/3 2 5/8- 11/7
  = = =
(3 1/12+4 375/1000):19 8/9 (3 1/12+4 3/8):19 8/9 (3 2/24+4 9/24):19 8/9

2 5/8 - 1 4/7 2 35/56 - 1 32/56    1 3/56 1 3/56
= = = =
7 11/24 : 19 8/9 179/24 : 179/9    179/24*9/179      3/8

=59/56 : 3/8 = 59/56*8/3=59/21=2 17/21