六年级[上册]分数解方程练习题

1、六年级分数解方程练习题班级 姓名 成绩25% + 10X =4 X - 15%X = 685X+ 3X= 1215X-3X5 =52X+ 1 = 128217346X+ 5 =%1 33X=344 88v- 2 = 7 XX+ -X=-4X6 x 2 =27 168431235 X 103 X =258 X :=X1657296517-6 _26 v 13X 八35 45254x3 X9 = 292x+6x=4卬 X21 X 3 H4 x3x 20 2(x 2m)10 3 42 1 36x+5“ 5X3XHOI4 :?385X'L2X+ 1H12 3 44+H102X ©XH

2、4。8008 <14 < 卜 411521 15 5 28igoxhik5 72looxLXIo9 6 512X+1XH42 x+ XH1053 2 4H83X+7 X=18 X1313x （二 十)=x( 68)12xX 2 + l=4X 33X= 127乂 5=823 (x-12 x- 25%x =10x- = 16+620 xx- 7 x -4= 21 5(1) (12X3/4X+ 25%X=90X -3 X= 8 解:79+ 12X2/3) x=8/3 (9+ 8) x=8/3 17x= 8/3x=8/3 + 17x=8/51(2) 7x/15 =3/4 X4/15 X9/

3、17 7x/15=9/85x= 9/85 + 7/15x=27/119(3) (15X 1/3 + 15X 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) X5288+ (26 14) X8500X 6 - (50 X 2 -80)(105X 12 635) +25864+ ( 27 23) X 12 (45+38-16) X24500 (240+ 38X6)64 (87 42) X15(845 15X3) +1612X ( 4928) +7 450+ ( 84 48 ) +12

4、(58+37) + ( 64-9X 5)95+ (64-45) 178-145+ 5X6+42812-700+ (9+31X11)85+14X (14+208+ 26) (284+16) X ( 512-8208+18)120-36X4+ 18+35 (58+37) + ( 64-9X5)x +X(X+) + + 4= + X =X ()=X () +X (6+) x ()x + + X () +12X6+ () -612X6+X+X(58+370) + ( 64-45)420+580-64X 21 - 28(136+64) X (65-345+ 23)388+(5000-1000)158+2

5、62+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+2863065-738- 1065899+3442357-183-317-3572365-1086-214497-2992370+19953999+4981883-39812X2575 X 24138X 25X 4(13X125)X(3X8)(12+24+80)

6、 X 50704X 25 25 X32X12532X(25+125) 88 X125102X 76 58 X98178X101- 17884 X 36+64X 8475 X 99+2X 7583X 102-83 X 298X199123X 18-123X 3+85X 12350X(34X4) X 325X (24+16)178X99+17879X42+79+79X577300+ 25+48100+ 4+7516800+ 12030100 210032000+ 40049700+ 7001248+ 243150+ 154800+ 252356- ( 1356 721)1235- ( 1780 1

7、665)75 X 27+19X 2 531X870+13X 3104X(25X65+25X 28) (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+286 3065- 738 1065899+3442357- 183 317-357 2365 1086-214497-2992370+19953999+4981883-39812X25 75 X24138X 25X 4(13X125)X(3X8

8、)(12+24+80) X 50704X 2525X32X 12532X(25+125)88X125102X7658X98178X101- 17884X36+64X 8475 义 99+2X 75 83 X 102 83X298X199123X18-123X3+85X12350X(34X4) X 325X (24+16)178X99+17879X42+79+79X577300+ 25+48100+ 4+7516800+ 12030100 210032000+ 40049700+ 7001248+ 243150+ 154800+ 2521500+ 1252356- ( 1356 721)1235

9、- ( 1780 1665)75 X 27+19X 2531X870+13X 3104X(25X65+25X 28)1 2x+3(9-x)=212x+3*9-3x=2127-x=21x=27-21x=62. (1-25%)x=7275%x=72x=72+ 75%x=963. x-40%x=(1-40%)x=x= + 60%x=66.2-(1/4+ 1/7 )X4/11=2-11/28X4/11=10/72x+3x=605x=60x=12问题里弄成+60 了是等号吧)20x=60x=35x+6x=11x=x=8=8x=54x-x=243x=24x=8=1=1x=2+=x=425x- 5x=10X 20-5X 2020x=100x=580x- 40=(30x+40) X 280x-40=60x+8020x=120x=680x-3200=60x+120020x=4400x=220+ 15=, x , 420+35= 12, 25X 12= 300, 135+= 270 3/4+ 1/4 =1, 3