12.3 million in Russian is either less correct "12 и 3 миллиона" (12 and 3 million) or more correct "12 целых 3 десятых миллиона" (12 whole 3 tenth million, sam

12.3 million in Russian is either less correct "12 и 3 миллиона" (12 and 3 million) or more correct "12 целых 3 десятых миллиона" (12 whole 3 tenth million, same as rational fraction).