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题型:填空题 题类:常考题 难易度:普通
异分母分数加、减法(不含带分数) 6913
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{#blank#}1{#/blank#} = {#blank#}2{#/blank#} = {#blank#}3{#/blank#} {#blank#}4{#/blank#} =
{#blank#}5{#/blank#} = 1{#blank#}6{#/blank#} = +( + )=( {#blank#}7{#/blank#} ){#blank#}8{#/blank#}
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