1-(5/12)+(5/4)+(1/12)-(14/15)-(39/20)一定要简算

1/3+4*(5+5/12) 0.25+12/1+（-3/2）-4/1-12/5 100/(1+12%)+100/(1+12%)^2+100/(1+12%)^3+100/(1+12%)^4+100/(1+12%)^5+1000/(1+12%)^5=928求计算过程 1/4/(5-0.25-12/25)算式 (5/12+1/6-3/4)×(-24) 12×1/4 15×3/5 (-36)*(1/4-5/9+7/12) 30 5 1 4 12 6 ） 1)5/4 x-12-x (-12)×(-5)+(-4)÷2/1 (5*6*1/30)12*(-6)+4 5 ( ) ( ) ( ) ( ) 12 ( ) ( ) ( ) ( ) ( )6 ( ) ( ) ( ) ( ) ( )( ) 5 ( ) ( ) ( ) ( )( ) ( ) ( ) ( ) ( ) ( )1 ( ) ( ) ( ) ( ) ( ) 7/12-（1/4-5/12）简算 7/12×6+5/12×6-1/4×2.1 12+1又4/3-8又12/5-6. 简算;11/12×4/5×5/6+1/4 1+2/3*5+3/5*8+4/8*12+5/12*17+1/17 1+2/3*5+3/5*8+4/8*12+5/12*17+1/17