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nmarten
@nmarten
July 2022
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намер 2 и 3. срочно . Помогите!!!
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математик2011
2.
1)
3 1/3 +2,5 = 10/3+5/2 = 20/6+15/6 = 35/6
3 1/3 - 2,5 = 20/6 - 15/6 = 5/6
35/6:5/6 =35/6*6/5 = 7
40%=0,4
7*0,4 = 2,8
2)
3 1/3:10 = 10/3*1/10 = 1/3
0,175:0,35 = 0,5=1/2
1/3+1/2 = 2/6+3/6 = 5/6
1 11/17*51/56 = 28/17*51/56 = 3/2 = 1,5
1,75-1,5 =0,25 =1/4
5/6:1/4 = 5/6*4 = 10/3
54% = 54/100 = 27/50
10/3*27/50 = 9/5 =18/10 =1,8
3.
наЙДИ ЗНАЧЕНИЕ ВЫРАЖЕНИЯ И раздели на 0,28 и0,35
1) 3,5:0,28 = 12,5
2) 1,4:0,35 = 4
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Answers & Comments
1)
3 1/3 +2,5 = 10/3+5/2 = 20/6+15/6 = 35/6
3 1/3 - 2,5 = 20/6 - 15/6 = 5/6
35/6:5/6 =35/6*6/5 = 7
40%=0,4
7*0,4 = 2,8
2)
3 1/3:10 = 10/3*1/10 = 1/3
0,175:0,35 = 0,5=1/2
1/3+1/2 = 2/6+3/6 = 5/6
1 11/17*51/56 = 28/17*51/56 = 3/2 = 1,5
1,75-1,5 =0,25 =1/4
5/6:1/4 = 5/6*4 = 10/3
54% = 54/100 = 27/50
10/3*27/50 = 9/5 =18/10 =1,8
3.
наЙДИ ЗНАЧЕНИЕ ВЫРАЖЕНИЯ И раздели на 0,28 и0,35
1) 3,5:0,28 = 12,5
2) 1,4:0,35 = 4