六级上册分数解方程练习题

1、六年级分数解方程练习题25% + 10x =x - 15%x = 683c 5=5x+ x = 1215x3x8217=126x+ 5 =13.43 w13X3x=4482773c2门x*x+ x=4x6X =2716843x* ®=?6 x 至35 4525x - 21 x -=41031x - x 20411=4x +x =262(x2.6) 84x 3 x 9 = 296x+ 5 =13.4-x-3 x 104 x 6 = 38123* x=3x =258x =1x165105729651u 15844155x=-x=x十 -1921155282 13258116x*=12_x

2、= 一_x=_ x345729651X=30%46 2613x+=十35 45251x-0.25=44+0.7x=1022x+1x=42x+x-3x=4008x-0.125x=8-x=105436 = 3X 413x( 6 + 8)=13x120.375x= 53x+一 x=18x75 x 2.4 x 5 = 8xx 2+1=4x 3 x 3x = 12 3 287I (x- 4.5) = 72 x- 25%x = 1030.36 x 5- x =44x- 0.8x = 16+620 x-8.5= 1.5 x-x -4= 21538x+ 25%x=90x 7 x=9解：112 X3/4 + 1

3、2X2/3x = 8/39 + 8x= 8/317x = 8/3x = 8/3 +7x = 8/5127x/15 = 3/4 >4/15 刈/177x/15 = 9/85x = 9/85 勻715x = 27/1193 15X1/3 + 15X2/5x = 205 + 6x= 2011x = 20x = 20+11x = 20/114 2x 3x/7 = 611x/7 = 6x = 6-11/7360- 12 + 6X5288+ 26 14X8500X6-(50 >2-80)105X12 635吃5864- 27 23X1245 + 38 16X24500 240 + 38X664

4、 87 42 X5845 15X3-612X 49 28T450- 84 48H258+37- 64-9 X595 - 64-45178-145 -5X6+42812-700 - 9+31 X 1185+14X 14+208-26284+16X 512-8208 - 18120-36 X4H8+3558+37- 64-9 X5(6.8-6.8 X55) -.50.12 X4.8 -.12 X4.83.2 X1.5+2.5-1.66-1.6 -4= 5.38+7.85-5.37=7.2 -0.8-1.2 X= 6-1.19 X-0.43=6.5 X 4.8-1.2 4=5.8 X +4.2 $.

5、7432.52- 6+9.728 -3.2X2.5X0.9-1.15 255.4 -2.6 X+0.6212X6- 12-7.2-612X6-7.2-60.68 X1.9+0.32 X.958+370- 64-45420+580-64 X21-28136+64X 65-345-2348.10.15-10.75 X.4-5.7388+(5000-1000)158+262+138375+219+381+2255001 247 1021 232181+2564 +2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+78

6、3+270)+1017 99+999+9999+99999 7755 (2187+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 X125) X(3 X) (12+24+80) X50 704X25 25 X32X125 32X(25+125) 88 X25 102X76 58 X98 178X101 178 84X36+64X 84 75X99+2X75 83X102 83X2

7、98X199 123X18 123X3+85X123 50X(34 X4) X3 25X 24+16 178X99+178 79X42+79+79X 57 7300 -25-4 8100 -4-75 16800-120 30100-2100 32000-400 49700-700 1248 -24 3150 -154800 -252356 1356 7211235 1780 166575X27+19X 2 531 X870+13X 3104X(25 X55+25X28)181+2564 +2719378+44+114+242+222276+228+353+219(375+1034)+(966+

8、125)(2130+783+270)+1017 99+999+9999+99755 (2187+755)2214+638+286 3065 738 1065899+3442357 183 317 357 2365 1086 214 497 2992370+19953999+4981883 39812X25 75 X24138X25X4(13 X125) X3 X)(12+24+80) X50704X2525X32X12532X(25+125)88X125102X7658X98178X101 17884X36+64X 8475 X99+2 X 75 83 X102 83X298X199123X1

9、8 123X3+85X12350X(34 X4) X325X 24+16 178X99+17879X42+79+79X 577300 -25-48100 -4-7516800-12030100-210032000+40049700+7001248 +243150 +154800 +2521500 + 1252356 1356 7211235 1780 166575X27+19X 2531 X870+13X 3104X(25 X55+25X28)12x+3(9-x)=212x+3*9-3x=2127-x=21x=27-21x=62. (1-25%)x=7275%x=72x=72 +75%x=96

10、3. x-40%x=3.6(1-40%)x=3.6x=3.6 +50%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 X20-5 X20 20x=100 x=580x-40=(30x+40) X280x-40=60x+80 20x=120 x=680x-3200=60x+1200 20x=4400 x=2201.5 0.06 = 1.440.75 岀5 = 0.05,0.4 >0.8 = 0.32,420-35 = 12,25X12 = 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 =5/4