Вырази время в указанных единицах 4 часа 15 минут сколько это минут 3 минуты 25 секунд сколько это секунд 2 дня 8 часов сколько это часов 720 секунд сколько это минут 540 минут сколько часов в 6 лет сколько это месяцев

4×60=240мин
240+15=255мин

3×60=180сек
180+25=205сек

2×24=48час
48+8=56час

720:60=12мин

540:60=8час

6×12=72мес

Пошаговое объяснение:

1

1) 11/15 : 3/8 = 11/15 * 8/3 = 88/45 = 1 43/45

2) 6/35 : 18/25 = 6/35 * 25/18 = 1/7 * 5/3 = 5/21

3) 12/55 : 48/77 = 12/55 * 77/48 = 1/5 * 7/4 = 7/20

4) 21/40 : 3/4 = 21/40 * 4/3 = 7/10 * 1/1 = 7/10

5) 27/50 : 9/25 = 27/50 * 25/9 = 3/2 * 1/1 = 3/2 = 1 1/2

6) 63/64 : 45/56 = 63/64 * 56/45 = 7/8 * 7/5 = 49/40 = 1 9/40

7) 5/8 : 5/32 = 5/8 * 32/5 = 32/8 = 4

8) 14/55 : 1/5 = 14/55 * 5/1 = 14/11 * 1/1 = 14/11 = 1 3/11

2

1) 6 : 7/9 = 6 * 9/7 = 54/7 = 7 5/7

2) 16 : 4/11 = 16 * 11/4 = 176/4 = 44

3) 13 : 26/29 = 13 * 29/26 = 377/26 = 14 13/26 = 14 1/2

4) 7/9 : 5 = 7/9 * 1/5 = 7/45

5) 9/16 : 6 = 9/16 * 1/6 = 9/96 = 3/32

6) 1 5/9 : 1 8/27 = 14/9 * 27/35 = 2/1 * 3/5 = 6/5 =  1 1/5

7) 2 10/13 : 3 3/26 = 36/13 * 26/81 = 4/1 * 2/9 = 8\9

8) 2 4/7 : 1 1/35 = 18/7 * 35/36 = 1/1 * 5/2 = 5/2 =  2 1/2

Пошаговое объяснение:

1.

1) 11/15 : 3/8 = 11/15 * 8/3 =

88/45 = 1. 43/45

2) 6/35 : 18/25 = 6/35 * 25/18 = 1/7 * 5/3 = 5/21

3) 12/55 : 48/77 = 12/55 * 77/48 = 1/5 * 7/4 = 7/20

4) 21/40 : 3/4 = 21/40 * 4/3 = 7/10 * 1/1 = 7/10

5) 27/50 : 9/25 = 27/50 * 25/9 = 3/2 * 1/1 = 3/2 = 1 1/2

6) 63/64 : 45/56 = 63/64 * 56/45 = 7/8 * 7/5 = 49/40 = 1 9/40

7) 5/8 : 5/32 = 5/8 * 32/5 = 32/8 = 4

8) 14/55 : 1/5 = 14/55 * 5/1 = 14/11 * 1/1 = 14/11 = 1 3/11

2.

1) 6 : 7/9 = 6 * 9/7 = 54/7 = 7 5/7

2) 16 : 4/11 = 16 * 11/4 = 176/4 = 44

3) 13 : 26/29 = 13 * 29/26 = 377/26 = 14 13/26 = 14 1/2

4) 7/9 : 5 = 7/9 * 1/5 = 7/45

5) 9/16 : 6 = 9/16 * 1/6 = 9/96 = 3/32

6) 1 5/9 : 1 8/27 = 14/9 * 27/35 = 2/1 * 3/5 = 6/5 =

1 1/5

7) 2 10/13 : 3 3/26 = 36/13 * 26/81 = 4/1 * 2/9 =

8/9

8) 2 4/7 : 1 1/35 = 18/7 * 35/36 = 1/1 * 5/2 = 5/2 =

2 1/2