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(^^♪
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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