ответ:
1.102
1) 5 3/5 = 5 6/10= 5.6
1 7/10= 1.7
5.6+1.7=7.4
2) 16/25=64/100=0.64
2 3/4= 2 75/100=2.75
0.64+2.75= 3.39
3) 15 9/20= 15 45/100=15.45
7 2/5= 7 4/10=7.4
15.45-7.4= 8.05
4) 1 21/50= 1 42/100= 1.42
1/2= 5/10=0.5
1.42-0.5=0.92
5) 8 3/4= 8 75/100= 8.75
1 3/5= 1 6/10= 1.6
8.75×1.6=14
6) 5/8= 625/1000= 0.625
16/25= 64/100= 0.64
0.625×0.64= 0. 41728
7) 3 1/5= 3 2/10= 3.2
4/25= 16/100= 0.16
3.2÷0.16=20
8) 13 1/2= 13 5/10= 13.5
1 7/8= 1 875/1000= 1.875
13.5÷1.875= 0.72
1.124
1)-3.68+5.18= -1.5
2) 6.109+(- 5.32)=0.789
3) -11.8066+0.4681=−11,3385
4) 5.04839+(-19.00791)=−14,3071
извините, не смогу решить 1.125. :( прости те пожалуйста
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Answers & Comments
ответ:
1.102
1) 5 3/5 = 5 6/10= 5.6
1 7/10= 1.7
5.6+1.7=7.4
2) 16/25=64/100=0.64
2 3/4= 2 75/100=2.75
0.64+2.75= 3.39
3) 15 9/20= 15 45/100=15.45
7 2/5= 7 4/10=7.4
15.45-7.4= 8.05
4) 1 21/50= 1 42/100= 1.42
1/2= 5/10=0.5
1.42-0.5=0.92
5) 8 3/4= 8 75/100= 8.75
1 3/5= 1 6/10= 1.6
8.75×1.6=14
6) 5/8= 625/1000= 0.625
16/25= 64/100= 0.64
0.625×0.64= 0. 41728
7) 3 1/5= 3 2/10= 3.2
4/25= 16/100= 0.16
3.2÷0.16=20
8) 13 1/2= 13 5/10= 13.5
1 7/8= 1 875/1000= 1.875
13.5÷1.875= 0.72
1.124
1)-3.68+5.18= -1.5
2) 6.109+(- 5.32)=0.789
3) -11.8066+0.4681=−11,3385
4) 5.04839+(-19.00791)=−14,3071
извините, не смогу решить 1.125. :( прости те пожалуйста