Помогите пожалуста 617 (1,3)

Question

Помогите пожалуста 617 (1,3)

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Answer 1

1) (1/12 + 1/6) : (3/8 - 1/4) = 2
            1) 1/12 + 1/6 = 1/12 + 2/12 = 3/12 = 1/4
            2) 3/8 - 1/4 = 3/8 - 2/8 = 1/8
            3) 1/4 : 1/8 = 1/4 * 8/1 = 8/4 = 2
2) (1/3 - 5/16) : (1/6 - 1/8) = 1/2
            1) 1/3 - 5/16 = 16/48 - 15/48 = 1/48
            2) 1/6 - 1/8 = 4/24 - 3/24 = 1/24
            3) 1/48 : 1/24 = 1/48 * 24/1 = 24/48 = 1/2