You would have to do around the world thing I use.5 times 3 plus 1 is 16 over 5:) 16/5 or sixteen fifths.
8+7 2/5=16 and two fifths
from what I worked out on the calculator its 16 over 5
1&7/24ths 24 is the common denominator for 2/3rds & 5/8ths. 2/3rds=16/24ths & 5/8ths = 15/24ths
1 1/15th or 16/15th
It is: 2/3 plus 2/5 = 16/15 as an improper fraction
50/3
16/3 = 51/3
Two-fifths or 0.4
16/40 + 15/40 = 31/40
5/16
16 and 2/3rds