36 : 1 2/7 написать решение
36 : 1 2/7= 36 : 9/7 = (36×7)/9=4×7=28
36:12/7 = 36 х 7/12 = 36*7 / 12 = 252/12 = 21/1 = 21
36:12/7=36/1:12/7=36/1*7/12=21