Exercise 3 Page 119

One way to know if two ratios or rates are equivalent is by writing them as fractions. We can check if the relationship between the two quantities is the same when we compare these fractions in their simplest form. Let's see if the given rates are equivalent! c|c First Ratio & Second Ratio [0.8em] 56/81 & 7/9 We need to simplify the above expressions. Since the greatest common factor (GCF) of the numerator and denominator of the first ratio is 1, the fraction is already written in its simplest form. The same occurs for the second ratio. Then, we can compare the simplified rates. 56/81 ≠ 7/9 Since the fractions are not equivalent, the ratios are not equivalent.