Fractions have a numerator and a denominator. In the fraction ½ the denominator tells us that the whole is split into 2 equal parts. If you look on a fraction wall, you can see that 1/2 is the ...
The fraction may be simplified when the numerator and denominator have a common factor greater than one. Units are often referred to as ones. Eg, 4∙2 has 4 units and 2 tenths, or you could say 4 ...