Question

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 the first lizard?

Answer 1

1.9 INCHES shorter then the 9.4 inch lizard

Answer 2

first lizard was 1/12 inches longer than second lizard

Explanation:

A biologist measured one lizard that was 7/3 inches long and a second lizard that was 9/4 inches long.

To find the difference in length , we subtract the fractions

`(7)/(3)-(9)/(4)`

To subtract fractions, we need to make the denominators same

LCD is 12, multiply the first fraction by 4 and second fraction by 3

`(7)/(3)-(9)/(4)`

`(28)/(12)-(27)/(12)`

Now subtract the fractions

`(1)/(12)`

first lizard was 1/12 inches longer than second lizard