Ответы и объяснения

2012-09-16T12:03:25+00:00

5 2/9 : 6 4/15 = 47 * 15 / 9 * 94 = 5/6

5/6 + 1,2 = 5/6 + 1 1/5 = 5/6  +  6/5 = 25+36 / 30 = 61/30 = 2 1/30