olgagolos Н2 половина=50%
четверть=25%
0.1=10%
1/5=20%
др 1/2 1/4 3/4 1/5 2/5 3/5 1/10 1/20 1/50
д др 0.5 0.25 0.75 0.2 0.4 0.6 0.1 0.05 0.02
пр 50% 25% 75% 20%40%60% 10% 5%. 2%

н4
а 27%=0.27
11%=0.11
12%=0.12
20%=0.2
х=100-27-11-12-20
х=30%
х=0.3

б 0.13=13%
0.14=14%
0.3=30%
0.32=32%
х=100-13-14-30-32
х=11%
х=0.11

в 1/10=10%
2/10=20%
4/10=40%
3/10=30%

н5 4.5, 5.6, 2.5, 9, 12, 11.6, 20.9, 34.6