=3/5x(2.25+2.75+1)
=3/5x6
=18/5
=3.6
(2)(9+5/6)×4.25+(4+1/4)×1/6
=17/4×(9+5/6+1/6)
=17/4×10
=85/2
(3)1/7×102.31+69/7×102.31
=102.31×(1/7＋69/7)
=102.31×10
=1023.1
这是我在静心思考后得出的结论，
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=（2.25+2.75）×5分之3+1又3分之2
=6+1又3分之2
=7又3分之2
简便计算 2.25陈5分之3+2.75÷1又3分之2加60%
(1)2.25×3\/5+2.75÷（1+2\/3)+60 =3\/5x(2.25+2.75+1)=3\/5x6 =18\/5 =3.6 (2)(9+5\/6)×4.25+(4+1\/4)×1\/6 =17\/4×(9+5\/6+1\/6)=17\/4×10 =85\/2 (3)1\/7×102.31+69\/7×102.31 =102.31×(1\/7＋69\/7)=102.31×10 =1023.1 这是我在静心思考后...
计算题2.25×五分之三+2.75÷1又三分之二+60%怎么做
2.25×3\/5+2.75÷5\/3+60%=18\/5
2.25*五分之三+2.75\/一又三分之二+60%简便运算
原式=2.25x3\/5+2.75x3\/5+3\/5 =(2.25+2.75+1)x3\/5 =6x3\/5 =6x0.6 =3.6
2.25*5分之3+2.75\/1又3分之2+60%的简便方法计算过程
2.25*5分之3+2.75\/1又3分之2+60 =2.25*(3\/5)+2.75*(3\/5)+(3\/5)=(3\/5)*(2.25+2.75+1)=(3\/5)*6 =18\/5 =3.6
2.25*五分之三+2.75\/一又三分之二+60%简便运算
原式=2.25x3\/5+2.75x3\/5+3\/5 =(2.25+2.75+1)x3\/5 =6x3\/5 =6x0.6 =3.6
能简算就简算 2.25×3\/5+2.75÷1又2\/3+60%
2.25×3\/5+2.75÷1又2\/3+60％ =2.25×3\/5+2.75×3\/5+3\/5 =（2.25+2.75+1）×3\/5 =6×3\/5 =18\/5 =3 3\/5 这道题先把分数除法转变为分数乘法，把60%转换成分数，然后运用乘法分配律来进行计算。
能简算就简算 2.25×3\/5+2.75÷1又2\/3+60%
2.25×3\/5+2.75÷1又2\/3+60％ =2.25*0.6+2.75\/(5\/3)+0.6 =2.25*0.6+2.75*3\/5+0.6 =0.6*(2.25+2.75+1)=0.6*6 =3.6
2.25×3\/5+2.75÷1又2\/3+60%
2.25×3\/5+2.75÷1又2\/3+60 =2.25×3\/5+2.75×3\/5+3\/5 =3\/5×(2.25+2.75+1)=3\/5×6 =18\/5
2.25×5分之3+1.75÷1又3分之2+60%
2.25×3\/5+1.75÷1又2\/3+60℅ =2.25×0.6+1.75÷5\/3+0.6 =2.25×0.6+1.75×3\/5+0.6 =2.25×0.6+1.75×0.6+0.6 =(2.25+1.75+1)×0.6 =5×0.6 =3 (1+1\/3+1\/4)×(1\/3+1\/4+1\/5)-(1+1\/3+1\/4+1\/5)×(1\/3+1\/4)=(1+1\/3+1\/4)×[(...
2.25×5分之3+2.75÷3分之5+60%怎么做
2.25×5分之3+2.75÷3分之5+60%=0.45×3+2.75×3÷5+0.6 =0.45×3+0.55×3+0.6 =3×（0.45+0.55）+0.6 =3+0.6 =3.6
