math
posted by Anonymous .
Simplify.
3 h 20 min
4 h 25 min
+ 5 h 35 min

Add them
12hr 80 min
but 80 min is one hr, 20 min
13hr 20 min.
Get it?
posted by Anonymous .
Simplify.
3 h 20 min
4 h 25 min
+ 5 h 35 min
Add them
12hr 80 min
but 80 min is one hr, 20 min
13hr 20 min.
Get it?