简单数学题翻译成英文，高手进

two-thirds of a number minus 72 leaves 14, what is the number?
a number's septuple minus its quintupling is 12.8, what is the number?
B has 20% less than A, what is the ratio of A to B?

以下是我给你的翻译：
(1) 72 than a few of the 2 \ 3, less 14, and the number of
(2) a certain number of times in 5 of his 7-fold difference 12.8, and the number of
(3) B of the few number of Bijia 20% less, and a number of B than the number of yes?

应该对你有帮助的！！

1、72 more than a few of the 2 \ 3, less 14, and the number of

2、5, a number of times in his 7-fold difference of 12.8, and the number of

3、B Bijia number of a few 20%, and a number of B is more than the number of

差不多就是这样，你先给他看看吧，能看懂就好

To the family of foreign children do not encounter the translation of the title, please help
(1) 72 than a few of the 2 \ 3, less 14, and the number of
(2) a certain number of times in 5 of his 7-fold differen