Вычислите а) 9+ 2 3/8 б)9- 2 3/8 в)2 3/8-9 г)-2 3/8-9 д)-2 3/8+9 е)-9+2 3/8

Вычислим значения выражений: 

а) 9 + 2 3/8 = 9 + 2 + 3/8 = 11 + 3/8 = 11 3/8; 

б) 9 - 2 3/8 = 9 - 2 - 3/8 = 8 + 8/8 - 2 - 3/8 = 6 + 8/8 - 3/8 = 6 + 5/8 = 6 5/8; 

в) 2 3/8 - 9 = 2 + 3/8 - 9 = -7 + 3/8 = -6 - 8/8 + 3/8 = -6 - 5/8 = -6 5/8; 

г) -2 3/8 - 9 = -2 - 3/8 - 9 = -11 - 3/8 = -11 3/8; 

д) -2 3/8 + 9 = 9 - 2 - 3/8 = 7 - 3/8 = 6 + 8/8 - 3/8 = 6 + 5/8 = 6 5/8; 

е) -9 + 2 3/8 = - 9 + 2 + 3/8 = -7 + 3/8 = -6 - 1 + 3/8 = -6 - 5/8 = -6 5/8.