1) (7-56)/36 = - 49/36
2) - 49/36 : 49/6 = - 49/36 * 6/49 = - 1/6
(Сокращаете 36/6 = 6, - 49/49 = - 1)
3) - 1/6 * 6/7 = - 1/7
1) (7-56)/36 = - 49/36
2) - 49/36 : 49/6 = - 49/36 * 6/49 = - 1/6
(Сокращаете 36/6 = 6, - 49/49 = - 1)
3) - 1/6 * 6/7 = - 1/7