53乘以六十三分之六十二简便计算?
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53×62/63
=53×(1-1/63)
=53×1-53×1/63
=53-53/63
=52又10/63
=53×(1-1/63)
=53×1-53×1/63
=53-53/63
=52又10/63
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53×63分之62
=(63-10)×62/63
=63×62/63-10×62/63
=62-620/63
=62-(630/63-10/63)
=62-10+10/63
=52+10/63
=52又63分之10
=(63-10)×62/63
=63×62/63-10×62/63
=62-620/63
=62-(630/63-10/63)
=62-10+10/63
=52+10/63
=52又63分之10
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