【有理数混合运算-写过程1)(-2又3/7)+(3又1/3)+(-1又4/7)2)(0-3又2/11+(-6)-(+5又3/11)3)1/2+(-2/3)+(-4/5)+(-11)4)(+4.4)-(-0.1)-(-3又1/2)5)6.1-(-3.7)-(+4.9)-(-9.8)6)(-2又3/7)+(-3又1/6)+(1又4/7)】
<p>问题:【有理数混合运算-写过程1)(-2又3/7)+(3又1/3)+(-1又4/7)2)(0-3又2/11+(-6)-(+5又3/11)3)1/2+(-2/3)+(-4/5)+(-11)4)(+4.4)-(-0.1)-(-3又1/2)5)6.1-(-3.7)-(+4.9)-(-9.8)6)(-2又3/7)+(-3又1/6)+(1又4/7)】<p>答案:↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">刘皓明的回答:<div class="content-b">网友采纳 1)(-2又3/7)+(3又1/3)+(-1又4/7) =-2-3/7+3+1/3-1-4/7 =-2+3-1-3/7-4/7+1/3 =-(3/7+4/7)+1/3 =-1+1/3 =-2/3 2)(0-3又2/11)+(-6)-(+5又3/11) =-3-2/11-6+5+3/11 =-3-6+5-2/11+3/11 =-4+1/11 =-3-10/11 =-3又10/11 3)1/2+(-2/3)+(-4/5)+(-11) =1/2-2/3-4/5-11 =(15-20-24)/30-11 =29/30-11 =-10-1/30 =-10又1/30 4)(+4.4)-(-0.1)-(-3又1/2) =4.4+0.1+3.5 =8 5)6.1-(-3.7)-(+4.9)-(-9.8) =6.1+3.7-4.9+9.8 =6.1+9.8+3.7-4.9 =15.9-4.9+3.7 =11+3.7 =14.7 6)(-2又3/7)+(-3又1/6)+(1又4/7) =-2-3/7-3-1/6+1+4/7 =-2-3+1-3/7-1/6+4/7 =-4+4/7-3/7-1/6 =-4+1/7-1/6 =-4-1/42 =-4又1/42
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