A biologist measured one lizard that was 7/3 inches long and a second lizard that was 9/4 inches long. How much longer was then first lizard?
To find the difference in length between the two lizards, we need to subtract the length of the first lizard from the length of the second lizard:
9/4 inches - 7/3 inches.
To subtract fraction, we need to have a common denominator. In this case, the common denominator is 12.
Converting both fractions to have a denominator of 12:
(9/4) * (3/3) = 27/12
(7/3) * (4/4) = 28/12
Now we can subtract the lengths:
27/12 inches - 28/12 inches = (27-28)/12 inches = -1/12 inches.
Therefore, the first lizard (7/3 inches) is 1/12 inches shorter than the second lizard (9/4 inches).