关于倍数的表达 对吗

grasses

下面的看得有点不太懂，能解释一下吗？ 谢谢！

.2/3 as many A as B: <=> A=2/3*B, A是B的2/3

twice as many A as B: <=> A=2*B

it takes 7/5 as many hours to produce a deluxe stereo as it does to produce a basic <=>d=7/5b

himba

跟中文的说法一样吧

是谁谁谁的几倍，就乘几

比谁多几倍

乘的时候加一

grasses

thanks a lot !!