一个分数除以另一个分数,是将除数的分子与分母颠倒位置后,数相乘.如:\frac{2}{3}\div \frac{7}{3}=\frac{2}{3}\times \frac
英语翻译The ratio of one quantity to another is a fraction ,and is the number of times one quantity is contained in the other quantity of the same kind.第一句我能翻译:一个(数)量与另一个(数)量之比是个分数,第二句