1/2×1/15+1/3×1/2的简便计算

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1/2×1/15+1/3×1/2的简便计算1/2×1/15+1/3×1/2的简便计算1/2×1/15+1/3×1/2的简便计算1/2×1/15+1/3×1/2=1/2×(1/15+1/3)=1/2×(

1/2×1/15+1/3×1/2的简便计算
1/2×1/15+1/3×1/2的简便计算

1/2×1/15+1/3×1/2的简便计算
1/2×1/15+1/3×1/2
=1/2×(1/15+1/3)
=1/2×(1/15+5/15)
=1/2×(6/15)
=1/2×(2/5)
=1/5