The two numbers can be written in fractional forms in the given manner. For writing 0.56 in fraction form, put a denominator under 0.56 and put 1 under point, and two zeros for two digits. Therefore, the number 0.56 will become 56/100. You can further simplify it by dividing both numerator and denominator. Like 56/100 is equivalent to 28/50 = 14/25. Similarly, 1.23 can be written as 123/100.
