Hi I am a newbie and I am planning to invest ETH coin but I only have limited amount of money to start investing. Can I buy less than 1 ETH?Your response are greatly appreciated.Thank you.

Yes, you can buy in the exchanges before that you need to convert your fiat currency into bitcoin and then you can transfer it to the exchange. But right now the value of ETH is around 285$ if you have enough money you can even buy whole ETH in the exchange.