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∙2 has ...

This method is ideal when the denominator of the fraction is a factor or a multiple of 100. The denominator (400) is a multiple of 100. 400 ÷ 4 = 100. Write an equivalent fraction with 100 as the ...