Предмет: Математика, автор: MarianaHoops45688

Помогите умоляю очень сильно надо​

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Ответы

Автор ответа: Iryn95
0

Ответ:

Пошаговое объяснение:

1)

а) 2/5*3/7=(2*3)/(5*7)=6/35

б)3/5*2/27 =1/5*2/9=(1*2)/(5*9)=2/45

г) 5*2/11=(5*2)/11=10/11

д)3/5* 1 2/3=3/5*5/3=1

2)

а) 4/5:3/7= 4/5 * 7/3=(4*7)/(5*3)=28/15=1 13/15

б) 45/46 :15/23=45/46 * 23/15= 3/2 = 1 1/2

г) 3/11 : 9= 3/11 * 1/9=1* (11*3)=1/33

д) 8 1/3  : 5/9= 25/3 : 5/9= 25/3 * 9/5= 5*3= 15

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