(0.75×121-3/4×20-1/5)÷0.75怎么简算

(0.75×121-3/4×20-1/5)÷0.75怎么简算 (0.75×121-3/4×20-1/5)÷0.75怎么简算 4分之3 96:48 121:44 27:3 0.75:8分之1 0.75*4+0.75*5+3/4= -5-[-4+(1-0.25*4/3#1/3)#(-0.75)] 4*(x-0.5)=4/5 1/4*（x-0.75)=13/16 20％x=3/5-x 121x3/4-3/8x40-0.75(1/8+1/24+1/48+1/80+1/120+1/168)x56(7-11/16x3)+(1-11/16x7)+(5-11/16)+(3-11/16x5) 化简：7:28 2/1：4/1 0.75:0.5 5/9:20/3 ?急不是7；28是7；2.8 3/4*1/5+3/4*2/5+0.75*3/5-3/4简便运算 4/3*5/1+4/3*5/2+0.75*5/3-4/3简便计算 简便运算：1/3*4.5/(0.75+5/4) |-0.75|+(+3又1/4)-(-0.125)-|-0.25|+(+5/8) （0.75+3/4*99）除以1/5 1,1,2,3,5,8( )21,34 1,4,13,40,121,( ),( )1,4,13,40,121,( ),( ) 1,1,2,3,5,8( )21,34 118/121×13166又1/20÷41(1998+1989×1987)/(1988×1989-1)41又1/3×3/4+51又1/4×4/5+61又1/5×5/6+71又1/6×6/7 121*4分之3-8分之3*40-0.75简便计算 121*3/4-3/8*40-0.75的简便计算怎么做 121*4/3-8/3*40-0.75的简便记算的算式是什么