用英语写出下列数字

问题描述:

用英语写出下列数字
4999000
18405919
521434215
1439666438
3/4
7/30
3/8
7/12
1%
46%

four million nine hundred and ninety-nine hundred thousandeighteen million four hundred and five thousand nine hundred and nineteenfive hundred and twenty-one million four hundred and thirty-four thou...