It took Victor 8 4/5 hours to complete his science project and 5 3/10 hours to finish his art project. How many more hours did Victor spend on his science project?
*
1 35/53 hours
46 16/25 hours
3 ½ hours
14 1/10 hours
To find the difference in hours that Victor spent on his science project, we need to subtract the time it took him to finish his art project from the time it took him to finish his science project.
We can first convert the mixed numbers in the question into improper fractions.
8 4/5 hours = (8 * 5 + 4)/5 = 44/5 hours
5 3/10 hours = (5 * 10 + 3)/10 = 53/10 hours
Now subtract the time for the art project from the time for the science project:
44/5 - 53/10 = (44 * 2/5 - 53)/10 = (88/5 - 53)/10 = (88 - 53 * 5/5)/10 = (88 - 265/5)/10 = (88 - 53)/10 = 35/10 = 3 5/10 = 3 1/2
Therefore, Victor spent 3 1/2 (3 ½) more hours on his science project.