Question

10- 2.1/2:3.3/4+(2.1/2-1.1/3)*6

Answer 1

10- 2.1/2:3.3/4+(2.1/2-1.1/3)*6
10-1.05:0,825+(1.05-11/10:3)*6
10-21/20:33/40+(21/20-11/30*6
10-21/20*40/33+41/60*6
10-7*2/11+41/10*6
10-14/11+41/10
1411/110=12.8273