Объяснение:
(0,6-14/15)*6/7-(8/35-0,8):(-2 2/3 ) = - 1/2 .
1) 0,6 - 14/15 = 3/5 - 14/15 = 9/15 - 14/15 = - 5/15 = - 1/3 ;
2) 8/35 - 0,8 = 8/35 - 4/5 = 8/35 - 28/35 = - 20/35 = - 4/7 ;
3) - 1/3 * 6/7 = - 2/7 ;
4) - 4/7 : (- 2 2/3 ) = 4/7 : 2 2/3 = 4/7 : 8/3 = 3/7 * 3/8 = 3/14 ;
5) - 2/7 - 3/14 = - 4/14 - 3/14 = - 7/14 = - 1/2 .
ответ: -0.5
(0,6-14/15)*6/7-(8/35-0.8):(-2 2/3 )=
1) 0.6-14/15=3/5-14/15=9/15-14/15=-5/15=-1/3
2) (-1/3)*(6/7)=-2/7
3) 8/35-0.8=8/35-4/5=8/35-28/35=-20/35=-4/7
4) -4/7:(-2 2/3 )=-4/7:(-8/3 )=4*3/(8*7)=3/14
5)(-2/7)-(3/14)=-7/14=-0.5
Объяснение:
(0,6-14/15)*6/7-(8/35-0,8):(-2 2/3 ) = - 1/2 .
1) 0,6 - 14/15 = 3/5 - 14/15 = 9/15 - 14/15 = - 5/15 = - 1/3 ;
2) 8/35 - 0,8 = 8/35 - 4/5 = 8/35 - 28/35 = - 20/35 = - 4/7 ;
3) - 1/3 * 6/7 = - 2/7 ;
4) - 4/7 : (- 2 2/3 ) = 4/7 : 2 2/3 = 4/7 : 8/3 = 3/7 * 3/8 = 3/14 ;
5) - 2/7 - 3/14 = - 4/14 - 3/14 = - 7/14 = - 1/2 .
ответ: -0.5
Объяснение:
(0,6-14/15)*6/7-(8/35-0.8):(-2 2/3 )=
1) 0.6-14/15=3/5-14/15=9/15-14/15=-5/15=-1/3
2) (-1/3)*(6/7)=-2/7
3) 8/35-0.8=8/35-4/5=8/35-28/35=-20/35=-4/7
4) -4/7:(-2 2/3 )=-4/7:(-8/3 )=4*3/(8*7)=3/14
5)(-2/7)-(3/14)=-7/14=-0.5