六年级上册分数解方程练习题

1、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-626 y 13一入354525x - 3 X 9 = 2911x + X = 426X+ 3X= 1215X- 3 X5 _52X- 1 _ 128217346X+ 5 =13.431X -33X=34488X-2=7 ,X+ Zx=34X-6X 2=27 16843123 X=3 X =258X =x 1651057296515X=®空x=±X.4_15 _ 一1921155 28Ax- 21 X 2 =41032(x2.6)86X+ 5 =13.425 X-133 X=10

2、X 6= 386 _26 . 13 一 - 354525X-0.25=7=30%4+0.7X=1022 X+1 X=42X+驭=1053 24X- 3X=400X-0.125X=836 =3X 42X-丄=123 x=258X=- X 兰345729651X节 X=18X3138 )= 12x 0.375x=-6xX * 2 + l=4X 3328X 3X= 1275 X 2.4 X 5= 82 x- 25%x = 103 320.36 X 5-' x =(x- 4.5) = 74 53X+ 25%X=903-7 X=解：(1)( 12X3/44x- 0.8x = 16+620 x-8

3、.5= 1.5x- x -4= 21 53x= 20/11(4)2x 3x/7 = 611x/7 = 6x= 6T1/7360 珥(12 + 6) >5288 珥(26 14) X8500 >6-(50 >-80)(105X12 635)吃5864珥(27 23) X2(45+3816) >24500 (240 + 38 0)64 ( 87 42) X5(845 15X3) T612X (49 28)叼450珥(84 48)勻2(58+37) -(64-9 X5)95 - (64-45)178-145 PX5+42812-700 - (9+31X11)85+14X (1

4、4+208-26)(284+16 ) X (512-8208-18 )120-36 X4-18+35(58+37) -(64-9 X5 )(6.8-6.8 055) -.50.12 X4.8 -.12 X.8(3.2 X.5+2.5 ) -.66-1.6 -= 5.38+7.85-5.37=7.2 -0.8-1.2 5= 6-1.19 3-0.43=6.5 X(4.8-1.2 X)=5.8 X(3.87-0.13 ) +4.2 X.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- (

5、12-7.2 ) -612X6-7.2-60.68 X.9+0.32 X.9(58+370 ) - (64-45 )420+580-64 X21 -28(136+64 ) X (65-345 -23)48.10.15-10.75 X4-5.7388+(5000-1000)158+262+138375+219+381+2255001 247 1021 232 (181+2564 ) +2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755 (21

6、87+755) 2214+638+286 3065 738 1065 899+344 2357 183 317 357 2365 1086 214 497 299 2370+1995 3999+498 1883 398 12X25 75X24 138X25X4 (13 X25) X3 X) (12+24+80) X50 704X25 25 X32X125 32X(25+125) 88 X25 102 X76 58 >98 178 X101 178 84 X36+64 X84 75X99+2X75 83 X102 83X2 98 X199 123X18 123X3+85X123 50 X(

7、34 X4) X3 25X (24+16 ) 178 X99+178 79X42+79+79X57 7300十25詔 8100-475 16800-120 30100-2100 32000-400 49700-700 1248 -243150-15 4800 十252356 ( 1356 721 ) 1235 ( 1780 1665) 75X27+19X2 531 X870+13X310 4X(25 X5+25X28)(181+2564 ) +2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+

8、1017 99+999+9999+99755 (2187+755) 2214+638+286 3065 738 1065 899+3442357 183 317 357 2365 1086 214 497 2992370+1995 3999+498 1883 398 12X25 75 X24 138X25X4(13 X25) X X) (12+24+80) X50 704X25 25 X32 X125 32X(25+125) 88X125 102 X76 58X98178 X101 17884 X36+64 X8475 X99+2 X75 83 X02 83X298 X199123X18 12

9、3X3+85X12350 X(34 X) X 25X (24+16 ) 178 X99+178 79X42+79+79X57 7300十25詔 8100-4 勻5 16800-12030100 十 210032000 十 40049700 十 7001248 -243150-154800-2521500-1252356 ( 1356 721 )1235 ( 1780 1665)75X27+19X2531 X870+13X3104X(25 X5+25X28)12x+3(9-x)=212x+3*9-3x=2127-x=21x=27-21x=62. (1-25%)x=7275%x=72x=72 十7

10、5%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=9.22.3x=9.2x=425x-5x=10 >2

11、0-5 >20 20x=100 x=580x-40=(30x+40) >80x-40=60x+80 20x=120 x=680x-3200=60x+1200 20x=4400 x=2201.5 0.06 = 1.440.75 T5 = 0.05,0.4 >.8 = 0.32,420 七5 = 12, 25X12 = 300, 135P.5 = 270 3/4 + 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 =5/4 3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5 0.51 T7 = 0.03, 32.8 + 19 = 51.8, 5.2 -1.3 = 4,1.6 X.4 = 0.64 4.9 X.7 = 3.43,1 = 0.2,6-2 =0.5,0.87 0.49 =