5 3/4*8 - 2 1/3 * 1 3/14 - 1 37/48 * 2 2/15 Разложим данное выражение на действия и применим сокращение дробей.1) 5 3/4 * 8 = 5*4+3/4 * 8 = 23/4 * 8 = 46;2) 2 1/3 * 1 3/14 = 2*3+1/3 * 1*14+3/14 = 7/3 * 17/14 = 7*17/3*7*2 = 17/3*2 = 17/6 = 2 5/6;3) 1 37/48 * 2 2/15 = 1*48+37/48 * 2*15+2/15 = 85/48 * 32/15 = 17*5*2*8*2/3*8*2*5*3 = 17*2/3*3 = 34/9 = 3 7/9;4) 46 - 17/6 = 46*6/1*6 - 17/6 = 276 - 17/6 = 259/6 = 43 1/6;5) 259/6 - 34/9 = 259*3/6*3 - 34*2/9*2 = 777/18 - 68/18 = 709/18 = 39 7/18.