48целых 3/5 : 6целых 3/4 • 5/12 - 2целых 5/6 + 13целых 2/9 • (1целая 1/2 • 1целая 1/3 - 13 : 26)= решите

48 3/5  / 6 3/4 * 5/12 - 2 5/6 + 13 2/9 * (1 1/2 * 1 1/3 - 13 / 26) = 243/5  /
27/4  * 5/12 - 2 5/6 + 119/9 * (3/2 * 4/3 - 1/2) = 36/5 * 5/12 - 2 5/6+ 119/9 * (2 - 1/2) = 3 - 2 5/6 + 119/9 * 3/2 = 1/6 + 119/6 = 120/6 = 20