Ответы и объяснения

  • Muraha1
  • почетный грамотей
2013-12-21T23:39:28+04:00
1) 1 (5/6)n = 3 (1/12) - 1 (17/24) 1 (5/6)n = (37/12) - (41/24) 1 (5/6)n = (33/24) n= (33/24) : 1 (5/6) n= (33/24) * (6/11) n= (3/4) 2) (7/12 + 11/30 x) = (1/3) * 7 (1/4)) (7/12 + 11/30 x) = (1/3) *(29/4) (7/12 + 11/30 x) = (29/12) 11/30 x= (29/12)- (7/12) 11/30 x=22/12=11/6 x= (11/6) : (11/30) x= (11/6) * (30/11) x=5 3)( 1*6+3*7-2*11/54)z =2 (1/2) (5/54)z=5/4 z=(5/4) : (5/54) z=(5/4) * (54/5) z=54/4=13 (1/2)= 13,5