Ответы и объяснения

2013-05-10T18:27:53+04:00
2013-05-10T18:28:25+04:00

1 1/6 - 6=-4 5/6

1 1/6 - 6=1 1/6 - 5 6/6 = (1-5) + (1/6-6/6) = -4 - 5/6= -4 5/6