((2 38/45 - 1/15) / 13 8/9 + 3 3/65 * 0,26) / (18 1/2 - 13,7) * 1/85 * (1/3 + 1/9 + 1/27 + 1/81 + 1/162) = (2 35/45 / 13 8/9 + 198/65 * 26/100) / (12, 8 * 1/85) * (54/162 + 18/162 + 6/162 + 2/162 + 1/162) = (2 7/9 / 13 8/9 + 430) / (12 8/10 * 1/85) * 81/162 = (0,2 + 430) / (128/10 * 1/85) * 1/2 = 430,2 / (64 / 5 * 1/85) * 1/2= 430,2 / (64/425 * 0,5) = 430,2 / (64/425 * 1/2) = 430,2 / (64/850) = 430,2 / (32/425) = (430 2/10) : (32/425) = (430 1/2) : (32/425) = 861/2 : 32/425 =
= (861*425) / (2 * 32) = 365925 / 64 ≈ 5171.578125