Question 615393
find total:
1/2 + 2/5 + 3/4 + 4/5
10/20 + 8/20 + 15/20 + 16/20
(10 + 8 + 15 + 16)/20
49/20
.
average:
(49/20)/4
49/80 (fractional answer)
or
0.6125 (decimal answer)