Автор - Zramirabdullin
Ответ:
Пошаговое объяснение:
1) 5/72 * 3/10 = 1/24 * 1/2 = 1/48
2) 8/133 * 3/2 = 12/133
3) 2/5 * 13/12 = 13/30
1) 3/10 · 5/72 = (1·1)/(2·24) = 1/48
2) 8/133 : 2/3 = 8/133 · 3/2 = (4·3)/133 = 12/133
3) 2/5 : 12/13 = 2/5 · 13/12 = (1·13)/(5·6) = 13/30