1) 28/67×(а-2 11/13÷b)÷c.
а = 10 11/13, b = 1/2, c = 3 1/2.
2) (12÷а+b)÷1 1/2-c.
a = 3 3/5, b = 2/3, c = 1 1/3.
1) 28/67×(а-2 11/13÷b)÷c.
а = 10 11/13, b = 1/2, c = 3 1/2.
2) (12÷а+b)÷1 1/2-c.
a = 3 3/5, b = 2/3, c = 1 1/3.