A supermarket found that 723 customers bought sugar and 1323 customers bought salt. Which purchase was made by a greater fraction of customers?
Both the fractions have the same denominators. When the two fractions have the same denominator, then the greater fraction is the one with the greater numerator.
So, just compare the numerators 7 and 13.
Since 13>7
∴1323>723
Hence, a greater fraction of customers bought salt.