1/4+7/15+1/12的过程?
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1/4+7/15+1/12
=3/12+1/12+7/15
=4/12+7/15
=1/3+7/15
=5/15+7/15
=12/15
=4/5
=3/12+1/12+7/15
=4/12+7/15
=1/3+7/15
=5/15+7/15
=12/15
=4/5
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1/4+7/15+1/12
=1/4+1/12+7/15
=3/12+1/12+7/15
=4/12+7/15
=1/3+7/15
=5/15+7/15
=12/15
=4/5
=1/4+1/12+7/15
=3/12+1/12+7/15
=4/12+7/15
=1/3+7/15
=5/15+7/15
=12/15
=4/5
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1/4+7/15+1/12
=3/12+7/15+1/12
=4/12+7/15
=1/3+7/15
=5/15+7/15
=12/15
=4/5
=3/12+7/15+1/12
=4/12+7/15
=1/3+7/15
=5/15+7/15
=12/15
=4/5
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解:1/4+7/15+1/12
=15/60+28/60+5/60
=20/60+28/60
=48/60
=4/5
=15/60+28/60+5/60
=20/60+28/60
=48/60
=4/5
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我写给你计算过程:
1/4+7/15+1/12
=(1/4+1/12)+7/15
=(3/12+1/12)+7/15
=1/3+7/15
=5/15+7/15
=12/15
=4/5
=0.8
1/4+7/15+1/12
=(1/4+1/12)+7/15
=(3/12+1/12)+7/15
=1/3+7/15
=5/15+7/15
=12/15
=4/5
=0.8
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你对这个回答的评价是?
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