六年级分数解方程练习题班级姓名成绩25%+10X=X-15%X=68X+X=1215X-3×=X÷=126X+5=13.43X=X÷=X+X=4X-6×=2÷X=X=X=×X÷=×4x-3×9=29x+x=41X-21×=46X+5=13.4X-X=4χ-6=385X=X=X÷=X÷=12X=X=×X÷=÷X-0.25==30%4+0.7X=102X+X=42X+X=105X-X=400X-0.125X=8=X+X=18X×(+)=x-0.375x=2x×+=4×X-73X=125X-2.4×5=80.36×5-x=(x-4.5)=7x-25%x=10x-0.8x=16+620x–8.5=1.5x-x-4=21X+25%X=90X-X=解:(1)(12×3/4+12×2/3)x=8/3(9+8)x=8/317x=8/3x=8/3÷17x=8/51(2)7x/15=3/4×4/15×9/177x/15=9/85x=9/85÷7/15x=27/119(3)(15×1/3+15×2/5)x=20(5+6)x=2011x=20x=20÷11x=20/11(4)2x-3x/7=611x/7=6x=6÷11/7360÷[(12+6)×5]288÷[(26-14)×8]500×6-(50×2-80)3(105×12-635)÷25864÷[(27-23)×12](45+38-16)×24500-(240+38×6)[64-(87-42)]×15(845-15×3)÷1612×[(49-28)÷7]450÷[(84-48])÷12(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42812-700÷(9+31×11)85+14×(14+208÷26)(284+16)×(512-8208÷18)120-36×4÷18+35(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.50.12×4.8÷0.12×4.8(3.2×1.5+2.5)÷1.66-1.6÷4=5.38+7.85-5.37=7.2÷0.8-1.2×5=6-1.19×3-0.43=6.5×(4.8-1.2×4)=5.8×(3.87-0.13)+4.2×3.7432.52-(6+9.728÷3.2)×2.5[(7.1-5.6)×0.9-1.15]÷2.55.4÷[2.6×(3.7-2.9)+0.62]12×6÷(12-7.2)-612×6÷7.2-60.68×1.9+0.32×1.9(58+370)÷(64-45)420+580-64×21÷28(136+64)×(65-345÷23)48.10.15-10.75×0.4-5.7388+(5000-1000)158+262+138375+219+381+2255001-247-1021-232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+28643065-738-1065899+3442357-183-317-3572365-1086-214497-2992370+19953999+4981883-39812×2575×24138×25×4(13×125)×(3×8)(12+24+80)×50704×2525×32×12532×(25+125)88×125102×7658×98178×101-17884×36+64×8475×99+2×7583×102-83×298×199123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷7516800÷12030100÷210032000÷40049700÷7001248÷243150÷154800÷252356-(1356-721)1235-(1780-1665)75×27+19×2531×870+13×3104×(25×65+25×28)(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)5(2130+783+270)+101799+999+9999+99755-(2187+755)2214+638+2863065-738-1065899+3442357-183-317-3572365-1086-214497-2992370+19953999+4981883-39812×2575×24138×25×4(13×125)×(3×8)(12+24+80)×50704×2525×32×12532×(25+125)88×125102×7658×98178×101-17884×36+64×8475×99+2×7583×102-83×298×199123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷7516800÷12030100÷210032000÷40049700÷7001248÷243150÷154800÷2521500÷1252356-(1356-721)1235-(1780-1665)75×27+19×2531×870+13×3104×(25×65+25×28)12x+3(9-x)=2162x+3*9-3x=2127-x=21x=27-21x=62.(1-25%)x=7275%x=72x=72÷75%x=963.x-40%x=3.6(1-40%)x=3.6x=3.6÷60%x=66.2-1﹙/4+1/7×4﹚/11=2-11/28×4/11=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=170.5x=1x=21.9x+0.4x=9.22.3x=9.2x=425x-5x=10×20-5×2020x=100x=580x-40=(30x+40)×280x-40=60x+8020x=120x=680x-3200=60x+120020x=4400x=2201.5-0.06=1.440.75÷15=0.05,0.4×0.8=0.32,420÷35=12,25×12=300,135÷0.5=2703/4+1/4=1,3-2/3=7/3,3/4-1/2=1/41/6+1/2-1/6=1/2,7.5-(2.5+3.8)=1.2,7/8+3/8=5/43/10+1/5=1/2,4/5-7/10=1/10,2-1/6-1/3=1.50.51÷17=0.03,32.8+19=51.8,5.2÷1.3=4,1.6×0.4=0.644.9×0.7=3.43,81÷5=0.2,6÷12=0.5,0.87-0.49=0.389