4/15÷2/3+3/7×5/6
=4/15×3/2+1/7×5/2
=2/5+5/14
=28/70+25/70
=53/70
=4/15×3/2+1/7×5/2
=2/5+5/14
=28/70+25/70
=53/70
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第1个回答 2013-01-17
4/15÷2/3+3/7×5/6
=4/15×3/2+3/7×5/6
=2/5+5/14
=53/70
=4/15×3/2+3/7×5/6
=2/5+5/14
=53/70
第2个回答 2013-02-02
4/15÷2/3+3/7×5/6
=4/15×3/2+1/7×5/2
=2/5+5/14
=28/70+25/70
=53/70
=4/15×3/2+1/7×5/2
=2/5+5/14
=28/70+25/70
=53/70
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