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84又4/19×1.375+105又5/19×0.8(2003+20032003+200320032003)/(2004+20042004+200420042004)2003÷2003又2003/2004
题目详情
84又4/19×1.375+105又5/19×0.8
(2003+20032003+200320032003)/(2004+20042004+200420042004)
2003÷2003又2003/2004
(2003+20032003+200320032003)/(2004+20042004+200420042004)
2003÷2003又2003/2004
▼优质解答
答案和解析
84又4/19×1.375+105又5/19×0.8
=(84+4/19)x11/8+(105+5/19)x0.8
=84x11/8+11/38+105x0.8+5/19x0.8
=115.5+11/38+84+4/19
=199.5+(11+8)/38
=199.5+0.5
=200
(2003+20032003+200320032003)/(2004+20042004+200420042004)
=[2003x(1+10001+100010001)]/[2004x(1+10001+100010001)]
=2003/2004
2003÷2003又2003/2004
=2003/[2003+2003/2004]
=2003/[2003x(1+1/2004)]
=1/[1+1/2004]
=2004/2005
急,有追加!
=(84+4/19)x11/8+(105+5/19)x0.8
=84x11/8+11/38+105x0.8+5/19x0.8
=115.5+11/38+84+4/19
=199.5+(11+8)/38
=199.5+0.5
=200
(2003+20032003+200320032003)/(2004+20042004+200420042004)
=[2003x(1+10001+100010001)]/[2004x(1+10001+100010001)]
=2003/2004
2003÷2003又2003/2004
=2003/[2003+2003/2004]
=2003/[2003x(1+1/2004)]
=1/[1+1/2004]
=2004/2005
急,有追加!
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