0,6=6/10
6/10-2/5=6/10-4/10=2/10=1/5
0,16=16/100
3/16*16/100=3/100
0,03=3/100
9/20:3/100=9/20*100/3=3*5/1*1=15
3 1/3*2 2/5*(2- 4 8/15*3/17)
1) 4 8/15*3/17 = 4/5
2) 2 - 4/5 = 1 1/5
3) 3 1/3 * 2 2/5 = 8
4) 8 * 1 1/5 = 9 3/5
Ответ: 9 3/5
(10 3/4-12:1 1/5)* 4/9+2 1/6+3 1/4:5 1/5
1) 12:1 1/5 = 10
2) 10 3/4 - 10 = 3/4
3) 3 1/4 : 5 1/5 = 5/8
4) 3/4 * 4/9 = 1/3
5)1/3 + 2 1/6 = 2 1/2
6) 2 1/2 + 5/8 = 3 1/8
Ответ: 3 1/8
100*120-((120-50-40)*40)=12000-1200=11880см=1188дм=118,8м