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3/8%0点125的差除以二分之1=多少用简便方法计算

2.5/8+3.5x1/8+0.125=2.5x1/8+3.5x1/8+1/8=1/8x(2.5+3.5+1)=7/8

【10-3.125*(2+2/3-1.6)】/(2+1/12-0.625) =【10-25/8*(0.4+2/3)】/(1.375+1/12) =【10-25/8*(2/5+2/3)】/(1+3/8+1/12) =【10-25/4*(1/5+1/3)】/[(24+9+2)/24] =(10-5/4-25/12)/(35/24) =(10-5/4-25/12)*24/35 =10*24/35-5/4*24/35-25...

0.125x3/4+1/8x8.25+0.125 =1/8x(3/4+33/4+1) =1/8x10 =12.5

5减1又三分之一,减2.5减1又三分之二的差,的差,除以0点儿125 =[5-2.5-(1又3分之1+1又3分之2)]×8 =(2.5-3)×8 =-0.5×8 =-4

48×7/125÷3/2 =16

(125+1-26)x0.375=37.5

0.125:2分之1 解:根据比例的基本性质解比例: 0.125:2分之1 =1/8:1/2 =1/8÷1/2 =1/8x2 =1/4

15.2×12.5%+1/8×5.8-0.125=15.2×0.125+0.125×5.8-0.125×1=(15.2+5.8-1)×0.125=20×0.125=2.5

(6.9×0.125×1.75)÷(2.3×8分之1×4分之1) =6.9×8分之1×4分之5÷2.3÷8分之1÷4分之1 =6.9÷2.3×(8分之1÷8分之1)×(4分之5÷4分之1) =3×1×5 =15

3.2×8分之一加7点8×25/百-0点125 3.2×1/8+7.8×25/100-0.125 =0.4+1.95-0.125 =.2.225

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