 : \frac{1}{6} + 3 \frac{14}{15}) : 0,8 }{3 \frac{1}{25} * \frac{5}{12} - \frac{2}{3} } = \frac{x}{1 \frac{3}{8} : (4 \frac{5}{16} - 3 \frac{1}{6}) } )
((25/90 - 24/90) : 1/6 + 3 14/15) : 0,8 Х--------------------------------------------------- = ----------------------------------------- 76/25 * 5/12 - 2/3 11/8 : (4 15/48 - 3 8/48)(1/90 : 1/6 + 3 14/15) : 0,8 Х--------------------------------------- = ---------------------------------- 19/5 * 1/3 - 2/3 11/8 : 1 7/48(1/90 * 6/1 + 3 14/15) : 0,8 Х---------------------------------------- = ----------------------------------------- 19/15 - 2/3 11/8 : 55/48(6/90 + 3 14/15) : 0,8 Х-------------------------------- = ----------------------------- 19/15 - 10/15 11/8 * 48/55(2/30 + 59/15) : 0,8 Х------------------------------- = ------------------------- 9/15 1/1 * 6/5(2/30 + 118/30) : 0,8 Х----------------------------- = ---------------------------- 9/15 6/5120/30 : 0,8 Х---------------- = ------------ 9/15 6/598/30 : 8/10 Х------------------- = -------------- 9/15 6/5120/30 * 10/8 Х----------------- = -------------- 9/15 6/515/3 * 1/1 Х--------------- = ------------ 9/15 6/55 : 9/15 = х : 6/59/15Х = 5 * 6/59/15х = 6х = 6 : 9/15х = 6 * 15/9х = 2 * 15/3х = 30/3х = 10