1.75-1/3+4/5+1.05-2/3+2.2
1.75-1/3+4/5+1.05-2/3+2.2
1.75+1/3+4/5+1.05-2.2等于多少!
8又1/4-2又3/5+1.75-2又2/5简算
2-(7\9-5\6 +7\18)除以1\18-1又3\4除以(-1.75)
19.75-(1.75×8/13+1 3/4×5/13)过程,
几道计算题,1.(2/3-1/2)-(1/3-5/6)2.2.4-(-3/5)+(-3.1)+4/53,(-6/13)+
1+4分之3+(6.5)+3又8分之3+(-1.75)+2又8分之5
1又4分之3 +(-6.5)+3又8分之3+(-1.75)+2又8分之5
简算1又3/4+(-2又1/6)+(-1.75)+3又2/3=?
1.1/1*2+1/2*3+1/3*4+……+1/99*100 2.2/1*3+2/3*5+2/5*7+……+2/97*
1/4×〔4.85÷5/18-(3.6-6.15×3又 3/5)〕〔1.75(1又2/3+19/21)-5.5〕
1/4*(4.85除以5/18-3.6+6.15*3又3/5)—[1.75*(1又3/2+19/21)-5.5]