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题型:解决问题 题类:常考题 难易度:普通
异分母分数加、减法(不含带分数) 6918
={#blank#}1{#/blank#} ={#blank#}2{#/blank#}
{#blank#}1{#/blank#}
{#blank#}2{#/blank#}
{#blank#}3{#/blank#}
{#blank#}4{#/blank#}
1- = + = - = 0.5- =
= 1-1÷6=
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