(5 3/5 + 18 1/2 -7 5/24):16 2/3
1) 5 3/5 +18 1/2 - 7 5/24 = 16 + 72/120 + 60/120 - 25/120 = 18 107/120 2)18 107/120 : 16 2/3 = 318/120 * 3/50 = 159/1000 = 0,159