Ответ:вот

Пошаговое объяснение:

Пошаговое объяснение:

№1

1) 3 1/3 * 1,3 = 10/3 * 13/10 = 1/3 * 13/1 = 13/3 = 4 1/3

2) 7,2 * 2/27 = 72/10 * 2/27 = 8/5 * 1/3 = 8/15

3) 9,1 : 3,5 = 2,6

4) 4 1/3 - 8/15 = 4 5/15 - 8/15 = 3 20/15 - 8/15 = 3 12/15 = 3 4/5

5) 3 4/5 - 2,6 = 19/5 - 26/10 = 19/5 - 13/5 = 6/5

6) 6/5 : 2/5 = 6/5 * 5/2 = 3/1 * 1/1 = 3/1 = 3

№2

1) 6,8 - 5 5/9 = 6 8/10 - 5 5/9 = 6 72/90 - 5 50/90 = 1 22/90 = 1 11/45

2) 2 13/30 - 2 1/12 = 2 26/60 - 2 5/60 = 21/60 = 7/20

3) 1 11/45 : 7/20 = 56/45 * 20/7 = 8/9 * 4/1 = 32/9

4) 32/9 * 3,6 = 32/9 * 36/10 = 16/1 * 4/5 = 64/5 = 12 4/5 или 12,8