Americans Suck At Fractions

Americans have loved McDonald’s Quarter Pounder ever since a franchisee introduced the iconic outperformed McDonald’s in blind taste tests, with consumers preferring the flavor of A&W’s burger.
burger to the country in 1972. In the 1980s, A&W attempted to capitalize on the success of the Quarter Pounder—and drum up a little competition for Ronald and friends—by introducing a third-pound burger. The bigger burger gave consumers more bang for their collective buck. It was priced the same as the Quarter Pounder but delivered more meat. It even

But when it came down to actually purchasing the third-pound burgers, most Americans simply would not do it. Baffled, A&W ordered more tests and focus groups. After chatting with people who snubbed the A&W burger for the smaller Quarter Pounder, the reason became clear: Americans suck at fractions. Alfred Taubman, who owned A&W at the time, wrote about the confusion in his book Threshold Resistance:

More than half of the participants in the Yankelovich focus groups questioned the price of our burger. "Why," they asked, "should we pay the same amount for a third of a pound of meat as we do for a quarter-pound of meat at McDonald's? You're overcharging us." Honestly. People thought a third of a pound was less than a quarter of a pound. After all, three is less than four!

Read more:
Why No One Wanted A&W's Third-Pound Burger | Mental Floss