823 плиз решите!!!!!!!!!!

3 9/14        х --------- = ------- 2 1/7         1,5 2 1/7х = 3 9/14 * 1,5 15/7х = 51/14 * 15/10 15/7х = 765/140 х = 765/140 : 15/7 х = 765/140 * 7/15 х = 51/20           2 8/15        1,5 --------- = -------- 3 4/5           z 2 8/15z = 1,5 * 3 4/5 38/15z = 15/10 * 19/5 38/15z = 3/10 * 19/1 38/15z = 57/10 z = 57/10 : 38/15 z = 57/10 * 15/38 z = 57/2 * 3/38 z = 171/76 = 2,25 = 2 1/4