Ответ:
Пошаговое объяснение:
№ 406
4/21 : 3= 4/21 *1/3= 4/63
12/25 : 5= 12/25 *1/5=12/125
21/11 :17= 21/11* 1/17=21/357 = 1/17
5* 13/27 :2= 65/27*1/2=65/54= 1 11/54
12*10/29 : 2= 120/29 *1/2= 60/29 = 2 2/29
7* 1/9 :2 :6= 7/9*1/2*1/6=7/108
№407
5/16 : 4= 5/16 * 1/4= 5/64
27/53 : 3= 27/53*1/3=9/53
18/31 :71= 18/31* 1/72=1/124
7 * 17/23 : 4= 119/23 * 1/4=119/92= 1 27/92
11 * 20/94 : 3= 220/94 * 1/3= 220/282=110/141
3* 7* 1/29 :5= 21/29*1/5 =21/145
а) 21:3×4=28
b)25:5×12=60
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Answers & Comments
Ответ:
Пошаговое объяснение:
№ 406
4/21 : 3= 4/21 *1/3= 4/63
12/25 : 5= 12/25 *1/5=12/125
21/11 :17= 21/11* 1/17=21/357 = 1/17
5* 13/27 :2= 65/27*1/2=65/54= 1 11/54
12*10/29 : 2= 120/29 *1/2= 60/29 = 2 2/29
7* 1/9 :2 :6= 7/9*1/2*1/6=7/108
№407
5/16 : 4= 5/16 * 1/4= 5/64
27/53 : 3= 27/53*1/3=9/53
18/31 :71= 18/31* 1/72=1/124
7 * 17/23 : 4= 119/23 * 1/4=119/92= 1 27/92
11 * 20/94 : 3= 220/94 * 1/3= 220/282=110/141
3* 7* 1/29 :5= 21/29*1/5 =21/145
Ответ:
а) 21:3×4=28
b)25:5×12=60
Пошаговое объяснение: