Mathematics
Senior High

これのやり方教えて下さい

_特環小数 0.891 を既約分数で表せ。

Answers

xとおく
1000x=891.891891....
−) x=0.891891....

999x=891
x=891/999
=33/37

解き方覚えておきましょう(^^♪

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