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18.09%4.37%1.09%1.63简便计算要过程 2分之3*[1/(...

①18.09-4.37-1.09-1.63 =(18.09-1.09)-(4.37+1.63) =17-6 =11 ②2分之3*[1/(10分之21-2.05)+5分之2] =3/2×[1/(2.1-2.05)+2/5] =3/2×[1/0.05+2/5] =3/2×[100/5+2/5] =3/2×102/5 =183/5 =36又3/5 ③4.8*9.5+4又5分之4*1.5-4.8 =48/10×95/10...

14.7-3/17-14/17 =14.7-(3/17+14/17) =14.7-1 =13.7

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