Пошаговое объяснение:
5 1/6 : 31 + ( 3 1/4 + 2 1/6) : 2 3/5 : 5/18 = 7 2/3 .
1) 31/6 : 31/1 = 31/6 * 1/31 = 1/6 ;
2) 3 1/4 + 2 1/6 = 5 5/12 ;
3) 5 5/12 : 2 3/5 = 65/12 : 13/5 = 65/12 * 5/13 =2 1/12 ;
4) 2 1/12 : 5/18 = 25/12 * 18/5 = 7 1/2 ;
5) 1/6 + 7 1/2 = 7 4/6 = 7 2/3 .
Пошаговое объяснение:
5 1/6 : 31 + ( 3 1/4 + 2 1/6) : 2 3/5 : 5/18 = 7 2/3 .
1) 31/6 : 31/1 = 31/6 * 1/31 = 1/6 ;
2) 3 1/4 + 2 1/6 = 5 5/12 ;
3) 5 5/12 : 2 3/5 = 65/12 : 13/5 = 65/12 * 5/13 =2 1/12 ;
4) 2 1/12 : 5/18 = 25/12 * 18/5 = 7 1/2 ;
5) 1/6 + 7 1/2 = 7 4/6 = 7 2/3 .