The total amount of times Boris spent doing these two assignments is 7/10 hours
The given parameters are:
English = 1/2 hours
History = 1/5 hours
The total amount of times Boris spent doing these two assignments is
Total = 1/2 + 1/5
This gives
Total = 7/10
Hence, the total amount of times Boris spent doing these two assignments is 7/10 hours
Read more about fractions at:
https://brainly.com/question/1622425
#SPJ1