47-（18.75÷15分之8）*2又25分之6÷0.46 =47-(18+3/4)*15/8）*(2+6/25) ÷ 0.46 =47 - 75/4 * 15/8* 56/25 ÷ 0.46 =47-45*7/4 *100/46=47-(46-1)*7/4 *100/46=47-46*7/4 *100/46+1*7/4 *100/46=47-7*25 +7*25/46=-...