а) -27 : (-9) = 27÷9 = 3
б) -4,9:0,07 = - (4,9÷0,07) = 70
в) 5/6:(-5/12) = - 5/6 * 12/5 = - 5/6 * 12/5 = - 2
г) -3 1/9 : (-2 1/3) = - 28/9 : (- 7/3) = 28/9 : (7/3) = 28/9 * 3/7 = 28/9 * 3/7 = 28/9 * 3/7 = 4/3
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Answers & Comments
а) -27 : (-9) = 27÷9 = 3
б) -4,9:0,07 = - (4,9÷0,07) = 70
в) 5/6:(-5/12) = - 5/6 * 12/5 = - 5/6 * 12/5 = - 2
г) -3 1/9 : (-2 1/3) = - 28/9 : (- 7/3) = 28/9 : (7/3) = 28/9 * 3/7 = 28/9 * 3/7 = 28/9 * 3/7 = 4/3