Question

выполнить действие 39 5/6 +12 5/9

Answer 1

39(5/6)+12(5/9)=52(7/18)

Answer 2

39 5/6 + 12 5/9 = 39 15/18 + 12 10/18 = 51 25/18 = 52 7/18

5/6 = 15/18 - доп.множ. 3
5/9 = 10/18 - доп.множ. 2