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小升初数学重点题型，通过关系式求a+b值，掌握思路和方法很重要
填空2：小升初数学重点题型，通过下列关系式计算a+b的值，掌握思路和方法很重要 如果𝒂 、𝒃都是自然数，并且𝒂/𝟏𝟑+𝒃/𝟒=𝟐𝟗/𝟓𝟐 ，那么𝒂+𝒃=( )？ 𝒂/𝟏𝟑+𝒃/𝟒 = (𝟒𝒂+𝟏𝟑𝒃)/(𝟏𝟑×𝟒)=𝟐𝟗/𝟓𝟐 𝟒𝒂+𝟏𝟑𝒃=29 𝒃=1，𝒂=4
小升初数学总复习231/299
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