Zero, one fourth, three fifths and seven tenths.
Multiply two fifths by two to get a common denominator. Then you will have 4 tenths plus three tenths. then add straight across and you will get seven tenths.
Two fifths is larger than three tenths because when you find the LCD (lowest common denominator) between the two, it is 4 tenths (two fifths) and 3 tenths.
An (uncountable) infinitude of numbers, including two thirds, seven tenths, and pi fifths.
Three fifths is larger than three eighths