47-（18.75÷15分之8）*2又25分之6÷ - 知识问答

47-（18.75÷15分之8）*2又25分之6÷0.46

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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
=-128+175/46
=-128+4-9/46
=-124又9/46

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