(7/25×2/3+2/3×18/25)÷2/3 (11/14-5/7+5/28)×28 2/7×(1÷3/4-3/4÷
(7/25×2/3+2/3×18/25)÷2/3 (11/14-5/7+5/28)×28 2/7×(1÷3/4-3/4÷
(2÷3÷7+4÷6÷14+14÷21÷49)÷(4÷7÷9+8÷14÷18+28÷49÷63)
(7/10+1/2)÷3/8-1/5,8/45×5/8+3/7÷9/28,3/10÷(2/5+4/15)-1/5,简便计
9÷1×8+7-2×3+4-5
3x+(x-1)÷2=3-(2x-1)÷3 (3y-1)÷4=(5y-7)÷6
3-8/9×6/5÷32/3 (1-1/4×8/9)×9/7 (5/6+1/3)÷(3/4-2/3) 3/4÷(1/2-
2/7÷1/7—1/5×1/3=?(3/4+3/7-1/2)÷1/28=?51×8/25-8/
能简算的要简算1-(5/7+3/14÷3/4)×2/7
1-(5/7+3/14÷3/4)×2/7简算
在1:(即使采纳)四、计算题.1/7÷7+7÷1/7 6-(1/7÷2+3) 3/4×88+1/4÷1/88 [1-(3
17-8÷(-2)+4(-5)=?2方×(5-7)÷(-2分之1)+3×(-2)方等于?
6x÷2+(x+4)×4÷2=(6+4)×4÷2解方程,还有(3-10/7﹚÷1/2×2/5这道题怎么做.