Ratio Rate and Speed/II
Ratio Rate and Speed/I
Ratio Rate/VI
Ratio Rate/V
Ratio Rate/IV
Ratio Rate/III
Ratio Rate/II
Ratio Rate/I
Ratio Calculations/1
Problem Solving with Algebraic Fraction/1
 in epidemiology, is a relative difference measure used to compare the incidence rates of events occurring at any given point in time.)
 in epidemiology, is a relative difference measure used to compare the incidence rates of events occurring at any given point in time.)
 in epidemiology, is a relative difference measure used to compare the incidence rates of events occurring at any given point in time.)
 in epidemiology, is a relative difference measure used to compare the incidence rates of events occurring at any given point in time.)
 in epidemiology, is a relative difference measure used to compare the incidence rates of events occurring at any given point in time.)
 and the denominator (bottom number) are both multiples of the same times table. This tells you their common factor, which you use to divide the top and bottom number, in order to simplify or cancel down the fraction as required.)