六年级上册分数解方程练习题

1、六年级上册分数解方程练习题班级姓名成绩25% + 10X =15%X = 685X+ 3X = 12185X-3X215二57|X* 1 - 12X，= 27 16+ Zx=3844X-6 X 2=231253X=3X =1025728X =9-X16512 /9X-3564526Y2：X-3X9=29Lx+2x=4321护-21X-=422心6X+5=13-42135x-3x=1o4X-6=385X=®19空x=±2115.4_155283X=258X=-xF57296516_26.13XAAr-354525X-0.25=7=30%4+0.7X=1022X+1X=42X+

2、32驭二10544/936 =3X4X-3X=4008X-0.125X=85/9X节X=18X3138)=12x0.375x=-6xX2+l=4X3328X3X=1275X2.4X5=830.36X5-'x=2(x-4.5)=72x-25%x=10x-0.8x=16+620x-8.5=1.54x-x-4=215X+25%X=903-7X=解：(12X3/411/9+12X2/3)x=8/3(9+8)x=8/317x=8/3x=8/3T7x=8/51(2)7x/15=3/4X/15X/177x/15=9/85x=9/85弓715x=27/119(3)(15X1/3+15X2/5)x=20

3、(5+6)x=2011x=20x=20-11x=20/11(4)2x3x/7=611x/7=6x=6-11/7360珥(12+6)>5288珥(2614)X8500>6-(50>-80)(105X12635)吃5864珥(2723)X2(45+3816)>24500(240+380)64(8742)X5(84515X3)-612X(4928)叼450珥(8448)-2(58+37)-(64-9X5)95-(64-45)178-145-5X3+42812-700-(9+31X11)85+14X(14+208-26)(284+16)X(512-8208-18)120-36X

4、4-18+35(58+37)-(64-9X5)(6.8-6.8055)-.50.12X4.8-.12X.8(3.2X.5+2.5)-.66-1.6-=5.38+7.85-5.37=7.2-0.8-1.25=6-1.193-0.43=6.5X(4.8-1.2X)=5.8X(3.87-0.13)+4.2X.7432.52-(6+9.728-3.2)X2.5(7.1-5.6)X0.9-1.1525.4-2.6(3.7-2.9)+0.6212X6-(12-7.2)-612X6-7.2-60.68X.9+0.32X.9(58+370)-(64-45)420+580-64X21-28(136+64)X(6

5、5-345-23)48.10.15-10.75X4-5.7388+(5000-1000)158+262+138375+219+381+22550012471021232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755一(2187+755)2214+638+28630657381065899+3442357183317357236510862144972992370+19953999+498188339812X2575X24138

6、X25X4(13X25)X3X)(12+24+80)X50704X2525X32X12532X(25+125)88X25102X7658>98178X10117884X36+64X8475X99+2X7583X10283X298X199123X18123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300十25gg8100-4A7516800-12030100-210032000-40049700-7001248-243150-154800十252356(1356721)1235(17801665)75X27+19X2531

7、X870+13X3104X(25X5+25X28)(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+99755(2187+755)2214+638+28630657381065899+3442357183317357236510862144972992370+19953999+498188339812X2575X24138X25X4(13X25)XX)(12+24+80)X50704X2525X32X12532X(25+125)88X125102X

8、7658X98178X10117884X36+64X8475X99+2X7583X0283X298X199123X18123X3+85X12350X(34X)X25X(24+16)178X99+17879X42+79+79X577300十25gg8100-4匀516800-12030100+210032000十40049700十7001248-243150-154800-2521500-1252356(1356721)1235(17801665)75X27+19X2531X870+13X3104X(25X5+25X28)12x+3(9-x)=212x+3*9-3x=2127-x=21x=27-

9、21x=62. (1-25%)x=7275%x=72x=72十75%x=963. x-40%x=3.6(1-40%)x=3.6x=3.6-60%x=66.2-(1/4+1/7；X4/11=2-11/28X4/11=10/72x+3x=605x=60x=123.6x-2.8x=120.8x=12x=15100x-x=19899x=198x=218x+2x=60(问题里弄成+60了是等号吧？)20x=60x=35x+6x=12.111x=12.1x=1.16.6x-5x=81.6x=8x=54x-x=243x=24x=81.5x-x=10.5x=1x=21.9x+0.4x=922.3x=9.2x=425x-5x=10>20-5>2020x=100x=580x-40=(30x+40)>80x-40=60x+8020x=120x=680x-3200=60x+120020x=4400x=2201.50.06=1.440.75T5=0.05,0.4>.8=0.32,12/420七5=12,25X12=300,135P.5=2703/4+1/4=1,3-2/3=7/3,3/4-1/2=1/41/6+1/2-1/6=1/2,7.