作业帮4.9除以14的简便算法怎么做?
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4.9除以14的简便算法怎么做?
4.9除以14的简便算法怎么做?
4.9除以14的简便算法怎么做?
4.9除以7再除以2等于0.35
4.9/14=4.9/(7*2)=0.7/2=0.35
4.9/14=(4.9/7)/(14/7)=0.7/2=0.35
即分子分母同时除以7,然后得到0.7/2,算得0.35
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