
3/7×1/4加百分之25×2/7 0点25×1/7的简便方法?
1个回答
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3/7×1/4 +25%×2/7+0.25×1/7
=3/7x0.25+0.25x2/7+0.25x1/7
=(3/7+2/7+1/7)x1/4
=6/7x1/4
=3/14
=3/7x0.25+0.25x2/7+0.25x1/7
=(3/7+2/7+1/7)x1/4
=6/7x1/4
=3/14
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