Ming used the calculations shown to find out how much he would spend on 6 pounds of ground beef if 10 pounds of ground beef cost $25.00. StartFraction 10 pounds over 25 dollars EndFraction = StartFraction 10 pounds divided by 25 over 25 dollars divided by 25 EndFraction = StartFraction 0.4 over 1 EndFraction. Unit Price = 40 cents. 40 cents times 6 = 2 dollars and 40 cents.

What was Ming’s error?
He determined pounds per dollar by dividing 10 by 25 but wrote the unit rate as a dollar value.
He divided the numerator and the denominator of the fraction by 25.
He made a mistake when finding the quotient of 10 pounds and 25 dollars.
He made a mistake when finding the product of $0.40 and 6.