Question

Даю 35 б.(знак / в двух заданиях это дробь)
N1
А) 3/7*4/5=
Б) 5/9*2/5=
В) 6/7*21/22=
Г) (3/4)^3= типа степень
Д) 3/5:4/7=
Е) 25/24:15/16=
Ж) 6/7:3=
З) 8:4/5=

N2
А) 4/5*(15/16:3/4)=
Б) 15/23:5/6*23/24=
В) 3/4*4/5*5/6*6/7=

Answer 1

3/7 * 4/5 = 12/35
5/9 * 2/5 = 2/9
6/7 * 21/22 = 6/1 * 3/22 = 3/1 * 3/11 = 9/11
(3/4)^3 = 3^3 / 4^3 = 27/ 64
3/5 : 4/7 = 3*7/ 5*4 = 21/20 = 1 1/20
25/24 : 15/16 = 25*16/24*15 = 5*2/3*3 = 10/9 = 1 1/9
6/7 : 3 = 2/7
8 : 4/5 = 10
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А) 4/5 ( 15/16 : 3/4) = 1
   1) 15/16 : 3/4 = 5/4
   2) 4/5 * 5/4 = 1
--------
Б) 15/23 : 5/6 * 23/24 = 3/4
    1) 15/23 : 5/6 = 18/23
    2) 18/23 * 23/24 = 18/24 = 3/4
--------
В) = 3*4*5*6 / 4*5*6*7 = 3/7

Answer 2

Спасибооо

Answer 3

ОК!