Решить дроби
(1\4+1/6) :10
(5/6-1/4) :7

1) (1/4+1/6):10 = ((3 + 2)/12):10 = 5/12 : 10 = 5/12 * 1/10 = (5*1)/(12*10) = 1/(12 *2) = 1/242) (5/6 -1/4) : 7 = ((10-3)/12) : 7 = 7/12 :12 = 7/12 * 1/12 = 7/144