Sam finished his math assignment in 1/4 hours then he completed his English assignment in 2/5 hours. How many hours did Sam spent doing both assignments?
you have to find a common denominator. (20) You do 4x5 and 5x4 both equal 20. Then you do 1x5=5 and 2x4=8 then 8+5=13 then you make your fraction which is 13/20.
