What is nine and three fifths minus six and three fourths?

9 3/5 - 6 3/4

Steps to take ;-

#1 convert to improper (top heavy ) fractions.

48/5 - 27/4

#2 bring to a common denomiator of '20' ( 5 x 4) and bring numerators to equivalent value.

[(48 x 4) - (27 x 5)] / 20

[192 - 135] /20

#3 subtract the numerators

57 / 20

#4 convert to a mixed fraction

2 17/20 ; The answer. in decimal 2.85